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MIL-R-6855E NOTICE 2 15 June 2001 SUPERSEDING NOTICE 1 18 December 1998 MILITARY SPECIFICATION RUBBER, SYNTHETIC, SHEETS, STRIPS, MOLDED OR EXTRUDED SHAPES, GENERAL SPECIFICATION FOR MIL-R-6855E, dated 31 July 1992, is hereby reinstated and may be used for acquisition. Custodians: Preparing activity: Army - MR Navy - AS Navy - AS Air Force - 11 DLA - IS (Project 9320-0040) Review activities: Army - AR, AT, AV, CE, CR, MI Navy - OS, SH, YD Air Force - 82, 99 DLA – CC, GS AMSC N/A FSC 9320 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NOTICE OF REINSTATEMENT INCH POUND Downloaded from http://www.everyspec.com

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Page 1: NOTICE OF REINSTATEMENT INCH POUND MIL-R-6855E NOTICE … · notice of cancellation inch-pound mil-r-6855e notice 1 18 december 1998 military specification elastomer, synthetic, sheets,

MIL-R-6855ENOTICE 215 June 2001SUPERSEDINGNOTICE 118 December 1998

MILITARY SPECIFICATION

RUBBER, SYNTHETIC, SHEETS, STRIPS, MOLDED OR EXTRUDED SHAPES,GENERAL SPECIFICATION FOR

MIL-R-6855E, dated 31 July 1992, is hereby reinstated and may be used for acquisition.

Custodians: Preparing activity: Army - MR Navy - AS Navy - AS Air Force - 11 DLA - IS

(Project 9320-0040)Review activities: Army - AR, AT, AV, CE, CR, MI Navy - OS, SH, YD Air Force - 82, 99 DLA – CC, GS

AMSC N/A FSC 9320

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

NOTICE OFREINSTATEMENT INCH POUND

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Page 2: NOTICE OF REINSTATEMENT INCH POUND MIL-R-6855E NOTICE … · notice of cancellation inch-pound mil-r-6855e notice 1 18 december 1998 military specification elastomer, synthetic, sheets,

NOTICE OF CANCELLATION

INCH-POUND

MIL-R-6855ENOTICE 118 December 1998

MILITARY SPECIFICATION

ELASTOMER, SYNTHETIC, SHEETS, STRIPS, MOLDED OR EXTRUDED SHAPES,GENERAL SPECIFICATION FOR

MIL-R-6855E, dated 31 July 1992, is hereby canceled. Future acquisition for this materialshould refer to SAE-AMS-R-6855, “Elastomer, Synthetic, Sheets, Strips, Molded or ExtrudedShapes, General Specification for”.

(Application for copies of SAE - Aerospace Material Specifications should be addressed toSAE, 400 Commonwealth Drive, Warrendale, PA 15096.)

Preparing activity: Navy - AS

(Project 9320-0022)

AMSC N/A FSC 9320

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

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Page 3: NOTICE OF REINSTATEMENT INCH POUND MIL-R-6855E NOTICE … · notice of cancellation inch-pound mil-r-6855e notice 1 18 december 1998 military specification elastomer, synthetic, sheets,

[1 NCH-POUND JMIL-R-6855ESUPPLEMENT 131 July 1992

MILITARY SPECIFICATION

RUBBER, SYNTHETIC, SHEETS, STRIPS, MOLDED OR EXTRUDED SHAPES,..

GENERAL SPECIFICATION FOR

THIS SUPPLEMENT FORMS A PART OF MIL-R-6855E, DATED 31 JULY 1992

MIL-R-6855/l

MIL-R-6855/2

MIL-R-6855/3

\ MIL-R-6855/4

MIL-R-6855/5

MIL-R-6855/6

..._

SPECIFICATION SHEETS

Rubber, Synthetic, Sheets.

Rubber, Synthetic, Strip (C)rTape).

Rubber, Synthetic, Rods (or Rounds).

Rubber, Synthetic, Tubing.

Rubber, Synthetic, Channel, Extmded.

Rubber, Synthetic, Special Shape, Extruded.

Preparing Activity:Navy - AS

AMSC: N/A lofl PSC 9320

DISTRIBUTION STATEMENT A: Approved for public release; distribution isunlimited.

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MILITARYSPECIFICATION

RUBBER , SYNTHE T I C , SHE E TS , STR I PS , MOLDED ORGENERAL SPEC I F I CAT I ON FOR

I I NCH POUND IM I L - R : 6 8 5 5 EW

M I L - R - 6 8 5 5D1 6 F e b r u a r y 1 9 8 7

EXTRUDED SHAPES ,

T h i s s p e c i f i c a t i o n I s a p p r o v e d f o r u s e b y a l l De p a r t me n t sa n d Ag e n c i e s o f t h e De p a r t me n t o f De f e n s e .

1 . SCOPE

1 . 1 ~ . T h i s s p e c f f t c a t i o n c o v e r s t h e r e q u i r eme n t s f o r l ow t em r ) e r a t u r er e s i s t a n t s h e e t s , s t r i p s , a n d mo l d e d o r e x t r u d e d ” s h a p e s f a b r i c a t e d f r &s y n t h e t i c r u b b e r ( s e e 6 . 1 ) .

1 . 2 C l a s s i f c a t i o ni T h e C l a s s e s , T y p e s , G r a d e s , a n d F o r ms o f s y n t h e t i cr u b b e r c o v e r e d b y t h l s ” s p e c l f l c a t i o n a r e a s s p e c l f l e d h e r e i n ( s e e 6 . 2 ) . T y p e

A ma t e r i a l ma y a l s o b e s u p p l i e d a s T y p e B ma t e r i a l .

C l a s s 1C l a s s 2

T y p e AT y p e B

C l a s s 3C l a s s 4

T y p e AT y p e 8

C l a s s 5

F u e l a n d p e t r o l e um 0 1 1 r e s i s t a n tP e t r o l e um 0 1 1 , we a t h e r a n d o z o n e r e s i s t a n tH i g h o z o n e c o n c e n t r a t i o nL ow o z o n e c o n c e n t r a t i o nNo n - o i l r e s i s t a n tP e t r o l e um 0 1 1 , we a t h e r a n d o z o n e r e s i s t a n t ( f o r u s e i nc o n t a c t w i t h a c r y l l c a n d p o l y c a r b o n a t e p l a s t i c s )H i g h o z o n e c o n c e n t r a t i o nL ow o z o n e c o n c e n t r a t i o nNo n - o i l r e s i s t a n t ( f o r u s e i n c o n t a c t w i t h a c r y l l c a n dp o l y c a r b o n a t e p l a s t l c s )

B e n e f i c i a l c omme n t s ( r e c o nmmd a t l o n s , a d d i t i o n s . d e l e t l o n s ) a n d a n yp e r t i n e n t d a t a wh i c h ma y b e o f u s e I n I mp r o v ! n g ” t h l s d o c ume n t s h o u l d b ea d d r e s s e d t o : Comumd i n g o f f t c e r , Na v a l A l r Ha r f a r e C e n t e r A i r c r a f tD l v i s l o n L a k e h u r s t , o x l e SR3 , L a k e h u r s t , NJ O8733-51OO, b y u s i n g t h es e l f - a d d r e s s e d S t a n d a r d i z a t i o n Do cme n t I mp r o v eme n t P r o p o s a l ( OD F o r m 1 4 2 6 )

n a a t n t o r b v l e t t e r .

AMSC WA F SC 9320QI.WUBKK-: Ap p r o v e d f o r p u b l l c r e l e a s e ; d t s t r l b u t l o n I s u n l i m i t e d .

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M I L - R - 6 8 5 5 E

1 . 2 . 2 - . T h e g r a d e d e s t g n a t l o n n umb e r s below correspond to then om i n a l Sh o r e A - 2 d u r ome t e r h a r d n e s s v a l u e s .

30 6040 7050 80

-

1 . 2 . 3 F o r m . F o r ms c o v e r e d b y t h i s s p e c l f l c a t l o n a r e a s f o l l ows :

Sh e e tS t r i p ( o r t a p e )E x t r u d e d s h a p e sMo l d e d s h a p e s

2 . APPL I CABL E DOCUNENTS

2 . 1 ~ .

z . ~ . l ~ . ~ ~ e f o ~ ~ ~ ~ ” gs p e c l f ! c a t l o n s , s t a n d a r d s , a n d h a n d b o o k s f o r m a p a r t o f t h i s d o c ume n t t o t h ee ~ t e n t s p e c l f l e d h e r e ! n . Un l e s s o t h e r w i s e s p e c t f i e d , t h e I s s u e s o f t h e s ed o c ume n t s s h a l l b e t h o s e l i s t e d f n t h e I s s u e o f t h e De p a r t me n t o f De f e n s eI n d e x o f Sp e c i f i c a t i o n s a n d S t a n d a r d s ( 0 0 0 1SS ) a n d s u p p l eme n t t h e r e t o , c i t e di n t h e s o l ~ c l t a t i o n ( s e e 6 . 2 ) .

SPEC I F I CAT I ONS

F EDERAL

T T - N - 9 5PPP - B - 6 0 1PPP - B - 6 3 6PPP - B - 6 4 0

M I L I TARY

M I L - P - 4 8 6 1M I L - P - 5 4 2 5M I L - P - 8 3 3 1O

STANDARDS

M I L I TARY

M I L - STD - 1 0 5

1 4 1 L - ST l ) - 1 2 9M I L - STD - 1 4 7WL - STD - 1 9 0M I L - STD - 2 8 9

M I L - STD - 2 9 8

M I L *STO - 4 0 7M I L - STD - 2 0 7 3 - 1

Na p h t h a , A l i p h a t l c .Bo x e s , Ho o d , C l e a t e d P l ywo o d .Bo x e s , Sh l p p ~ n g , F i b e r b o a r d .Bo x e s , F i b e r b o a r d , Co r r u g a t e d , T r i p l e - Ha l l .

P a c k f n g , P r e f ome d , Ru b b e r , P a c k a g ~ n g o f .P l a s t l c Sh e e t , A c r y l t c , He a t Re s t s t a n t .P l a s t i c Sh e e t , Po l y c a r b o n a t e , T r a n s p a r e n t .

SW ) l l n g P r we d u r e s a n d T a b l e s f o r Inspectionb y A t t r i b u t e s .Ma r k \ n g f o r Sh i pme n t a n d S t o r a g e .P a l l e t i z e d l l n l t L o a d s .I d e n t l f l c a t b n Ma r k l n g o f Ru b b e r P r o d u c t s .

V i s u a l I n s p e c t I o n Gu ! d e f o r Ru b b e r Sh e e tMa t e r i a l .V i s u a l I n s p e c t I o n Gu l c l e f o r Ru b b e r E x t r u d e dGo o d s ●

V i s u a l Xn s p e c t l o n ( Wa l e f o r Ru b b e r Mo l d e d I t ems . —DOD Ma t e r t ~ i P r o c e d u r e s f o r Oe v e l o pmm t a n dAp p l l c a t l o n o f P a c k a g ! n g Re q u i r eme n t s .

2

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M I L - R - 6 8 5 5 E

HANDBOOKS

M I L I TARY

M I L - HDBK - 6 9 5 - Ru b b e r P r o d u c t s : Re c o n s n e n d e dSh e l f L i f e

( S e e s u p p l eme n t 1 f o r a l l s t o f a s s o c i a t e d s p e c i f i c a t i o n s . )

( Un l e s s o t h e r w i s e I n d i c a t e d , c o p i e s o f f e d e r a l a n d m i l l t a r y s p e c l f l c a t l o n s ,s t a n d a r d s , a n d h a n d b o o k s a r e a v a i l a b l e f r om t h e $ t a n d a r d l z a t l o n Do c ume n t s

O r d e r De s k , B l d g . 4D , 7 0 0 Ro b b l n s A v e n u e , Ph i l a d e l p h i a , PA 1 9 1 1 1 - 5 0 9 4 . )

2 . 2 J ’ l o n - Go v e r n ~ t wb l l c a t l ~ T h e f o l l ow l n g d o c ume n t s f o r m a p a r t o ft h i s d o c ume n t t o t h e e x t e n t s p e c i f i e d h e r e i n . Un l e s s o t h e r w i s e s p e c i f i e d , t h eI s s u e s o f t h e d o c ume n t s wh i c h a r e DOD a d o p t e d a r e t h o s e l i s t e d I n t h e I s s u e o ft h e DODISSc i t e d i n t h e s o l i c i t a t i o n . Un l e s s o t h e r w i s e s p e c i f i e d , t h e I s s u e s

o f d o c ume n t s n o t l i s t e d i n t h e DOD I SS a r e t h e I s s u e s o f t h e d o c ume n t s c i t e d i nt h e s o l l c t t a t l o n ( s e e 6 . 2 ) .

AMER I CAN SOCIETYFOR T EST I NG AND MAT ER I ALS ( ASTM )

ASTM D3 9 5ASTM D4 1 2ASTM D4 7 1ASTM D5 1 8ASTM 0 7 9 2ASTM D1 1 4 9ASTM D2 2 4 0ASTM D3 9 5 1

- Ru b b e r P r o p e r t y - Comp r e s s I o n S e t .- Ru b b e r P r o p e r t i e s I n T e n s i o n .- Ru b b e r P r o p e r t y - E f f e c t o f L i q u i d s .- Ru b b e r De t e r l o r a t l o n - Su r f a c e C r a c k i n g .- Sp e c i f i c G r a v t t y a n d De n s i t y o f P l a s t i c s b y D i s p l a c eme n t .- Ru b b e r De t e r l o r a t l o n - Su r f a c e O z o n e C r a c k i n g i n a Ch amb e r .- Ru b b e r P r o p e r t y - t ) u r ome t e rHa r d n e s s .- S t a n d a r d P r a c t i c e f o r C c nmn e r c l a lP a c k a g i n g .

( Ap p l l c a t l o n f o r c o p i e s s h o u l d b e a d d r e s s e d t o t h e Ame r i c a n So c i e t y f o rT e s t \ n g a n d Ha t e r l a l s , 1 9 1 6 Ra c e S t r e e t , Ph l l a d e l p h l a , PA 1 9 1 0 3 . )

2 . 3 ~ d e r o f ~ r e c e d e n c e In t h e e v e n t o f a c o n f l i c t b e t we e n t h e t e x t o ft h i s d o c ume n t a n d t h e r e f e r e n c e s c i t e d h e r e ! n ( e x c e p t f o r r e l a t e d a s s o c i a t e d

d e t a i l s p e c l f l c a t l o n s , s p e c i f i c a t i o n s h e e t s , o r MS s t a n d a r d s ) , t h e t e x t o ft h i s d o c ume n t t a k e s p r e c e d e n c e . No t h i n g I n t h i s d o c ume n t , h owe v e r , s u p e r s e d e sa p p l i c a b l e l aws a n d r e g u l a t i o n s u n l e s s a s p e c i f ~ c e x emp t i o n h a s b e e n o b t a i n e d .

3 . REQU I REMENTS

3 . 1 Ws t a r t i c l e . Un l e s s o t h e r w i s e s p e c l f l e d ( s e e 4 . 3 . 2 , 6 . 2 a n d 6 . 6 ) ,f i r s t a r t i c l e i n s p e c t i o n s h a l l b e p e r f o r me d I n a c c o r d a n c e w~ t h 4 . 3 .

3 . 2 ~ c l f i ~ . T h e s y n t h e t i c r u b b e r s h e e t s , s t r i p s , a d d e d o re x t r u d e d s h a p e s r e q u i r eme n t s s h a l l b e a s s p e c t f i e d h e r e i n a n d I n a c c o r d a n c ew i t h t h e a p p l i c a b l e s p e c t f l c a t l o n s h e e t o r o t h e r g o v e r n i n g d o c ume n t wh e n t h ee n d i t em I s n o t c o v e r e d b y a s p e c i f i c a t i o n s h e e t . I n t h e e v e n t o f a n y c o n f l i c tb e t we e n t h e r e q u i r eme n t s o f t h i s s p e c l f ! c a t l o n a n d t h e s p e c i f i c a t i o n s h e e t ,t h e l a t t e r s h a l l g o v e r n .

3 . 3 ~ . Ma t e r i a l s u p p l l e d t o t h i s s p e c l f l c a t l o n s h a l l h a v e n oa d v e r s e e f f e c t o n t h e f l n ~ s h e d s u r f a c e s o f wo o d , me t a l , o r c l o t h w i t h wh f c h i tma y c ome i n c o n t a c t .

3 . 3 . 1 ~ . Po l y u r e t h a n e ma t e r i a l s h a l l b e e x c l u d e d u n d e r t h i ss p e c i f i c a t i o n .

3

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M I L - R - 6 8 5 5 E

3 . 4 D i me n& i o n s a n d t o l e a nmr D i me n s i o n s a n d t o l e r a n c e s f o r r u b b e rc omp o n e n t s s u p p l i e d t o t h i s d o c ume n t s h a l l b e a s s p e c i f i e d I n t h e s p e c ~ f i c a t l o ns h e e t , d r aw i n g , c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 ) . Hh e n t o l e r a n c e s a r e n o ts p e c i f i e d f o r s h e e t , s t r i p , t u b i n g , o r r o d , t h e y s h a l l b e I n a c c o r d a n c e w t t h3 . 4 . 1 f o r s h e e t a n d s t r i p a n d 3 . 4 . 2 f o r t u b i n g a n d r o d .

3 . 4 . 1 Sh e e t a n d s t 1P Hh e n n o t s p e c l f l e d . ( s e e 3 . 4 ) , t h e t o l e r a n c e s f o rw i d t h a n d t h i c k n e s s s h ~ l l ” b e a s s p e c l f l e d I n T a b l e s I a n d 1 1 r e s p e c t i v e l y .L am l n a t \ n g t h i n n e r s h e e t s a n d s t r i p t o o b t a l n s p e c i f i e d t h i c k n e s s e s s h a l l n o tb e a l l owe d . T h e t o l e r a n c e f o r l e n g t h s h a l l b e t h e s p e c i f f e d l e n g t h - O w t t h n ol i m i t a t i o n on t h e p l u s t o l e r a n c e . -

TABL E 1 . t i i d t h t o l e r a c e s f o r s h e e t a n d s tn r ~ .

TABL E I I . T h i c k n e s s t o l e r a n c e s f o r s h e e t a n d s t r l Q .

Nom i n a l T h i c k n e s s , I n c h e s ( m ) I T o l e r a n c e s

r c e n tJ c e n t

1 n tn tr ? t

De n tr c e n t

3 . 4 . 2 ~ . Hh e n n o t s p e c ! f f e d ( s e e 3 . 4 ) , t o l e r a n c e s f o r t u b i n ga n d r o d s h a l l ~ a s s p e c l f l e d I n T a b l e s 1 1 1 a n d IV r e s p e c t i v e l y .

I I T o l e r a n c e ,Nom i n a l Ha l l T h i c k n e s s , I n c h e s ( mm ) I n c h e s ( m )

I. 0 4 7 ( ? . 1 9 ) a n d u n d e r + . 0 1 6 ( . 4 0 ) , - O

o v e r . 0 4 7 ( 1 . 1 9 ) t o . 1 2 5 ( 3 . 2 0 ) t n c l u s i v e1

* . 0 1 6 ( . 4 0 )

o v e r . 1 2 5 ( 3 . 2 0 ) t o . 1 5 6 [ 3 . 9 7 ) i n c l u s f v e t . 0 2 3 ( . 6 0 )

o v e r . 1 5 6 ( 3 . 9 7 ) t o . 2 5 0 ( 6 . 4 0 ) I n c l u s l v e I * . 0 3 1 ( . 7 9 )

o v e r . 2 5 0 ( 6 . 4 0 ) * 1 0 p e r c e n t

1 / - T h e t o l e r a n c e f o r a l l n o d n a l I n s i d e d i ame t e r s ~ r om . 1 2 5 ( 3 . 2 ) t o1 . 7 5 0 ( 4 4 . 4 5 ) s h a l l b e * . 0 1 6 ( . 4 0 ) .

4

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M I L - R - 6 8 5 5 E

TABLE Iv. MUd e mus.

T o l e r a n c e ,Nom i n a l D \ ame t e r , i n c h e s ( m ) I n c h e s ( mm )

I I

u n d e r , 1 5 6 ( 3 . 9 7 ) t o . 2 5 0 ( 6 . 4 0 ) i n c l u s i v e + . 0 3 1 ( . 7 9 ) , - . 0 1 6 ( . 4 0 )

o v e r . 2 5 0 ( 6 . 4 0 ) t o . 5 0 0 ( 1 2 . 7 0 ) I n c l u s l v e i . 0 3 1 ( . 7 9 )

II

o v e r . 5 0 0 ( 1 2 , 7 0 ) t o 1 . 0 0 0 ( 2 5 . 4 0 ) i n c l u s i v e * . 0 4 7 ( 1 . 1 9 )

Io v e r 1 . 0 0 0 ( 2 5 . 4 0 ) t o 1 . 5 0 0 ( 3 8 . 1 0 ) i n c l u s i v e * . 0 6 2 ( 1 . 5 7 )

I o v e r 1 . 5 0 0 ( 3 8 . 1 0 )I

* 1 0 p e r c e n t

3.5 Su r f a c e f i n i s h . Un l e s s o t h e r w i s e s p e c t f l e d o n t h e d r aw i n g ,s p e c i f i c a t i o n s h e e t , c o n t r a c t , o r p u r c h a s e o r d e r ( s e e 6 . 2 ) , t h e s u r f a c e s o ft h e ma t e r i a l s h a l l b e smo o t h a n d f r e e f r om c l o t h I mp r i n t .

3.6 Ph y s l c a l a n d me r . b a n l c a? p r oDe r t l e s Ph y s i c a l a n d me c h a n i c a lp r o p e r t i e s o f C l a s s e s 1 , 2 a n d 3 s y n t h e t i c - r u b b e r s h a l l c o n f o r m t o T a b l e V .Ph y s i c a l a n d me c h a n i c a l p r o p e r t i e s o f C l a s s e s 4 a n d 5 s y n t h e t i c r u b b e r s h a l lc o n f o r m t o T a b l e V I .

3 . 6 . 1 W r e ~ . C l a s s e s 2 a n d 4 s y n t h e t i c r u b b e r s h a l l s h ow n os i g n s o f o z o n e c r a c k i n g a f t e r b e i n g c o n d i t i o n e d a n d t e s t e d u n d e r T y p e A f o rh i g h o z o n e c o n c e n t r a t i o n , o r T y p e B f o r l ow o z o n e c o n c e n t r a t i o n a s s p e c f f l e di n 4 . 6 . 1 . 4 .

3 . 6 . 2 C r a z l u . C l a s s e s 4 a n d 5 s y n t h e t i c r u b b e r ma t e r i a l s h a l l n o t c r a z ea c r y l ~ c o r p o l y c a r b o n a t e p l a s t i c s h e e t wh e n t e s t e d a s s p e c l f i e c i I n 4 . 6 . 1 . 5 .

3 . 6 . 3 . 1 UU-tm d. T h e s y n t h e t i c r u b b e r , wh e n s u b j e c t e d t o t h e t e s t s o f4 . 6 . 4 , s h a l l s h ow n o e v i d e n c e o f c r a c k i n g .

3 . 7 ~ . I f ma t e r l a l c o v e r e d b y t h i s s p e c ! f l c a t l o n t s r e q u i r e d t o b e o fa s p e c i f i e d c o l o r , t h e c o l o r r e q u i r eme n t a n d c o l o r q u a l l t y a s s u r a n c ep r o v i s i o n s s h a l l b e a s s t a t e d I n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 4 . 7 a n d6 . 2 ) .

3 . 8 W l f l i f ~ . Sh e l f l l f e r e q u i r eme n t s , b a s e d o n t h e t y p e o f ma t e r l a la n d c o n d i t i o n s o f s t o r a g e a n d u s e , s h a l l b e a s s p e c i f i e d i n t h e c o n t r a c t o rp u r c h a s e o r d e r ( s e e 6 . 2 ) . M I L - HDBK - 6 9 5 s h a l l b e u s e d a s g u i d a n c e f o rs p e c i f y i n g s h e l f l l f e , u n l e s s a n o t h e r d o c ume n t i s s p e c l f l e d . P r o d u c tl d e n t l f i c a t l o n ma r k i n g s s h a l l I n c l u d e t h e c u r e d a t e a n d t h e “ u s e b y ” d a t e o ft h e ma t e r i a l wh i c h s h a l l b e b a s e d o n t h e c u r e d a t e ( s e e 5 , 3 . 1 ) .

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M I L - R - 6 8 5 5 E

3 . 9 M . &n t l f l c a ~ . T h e I d e n t i f i c a t i o n ma r k i n g s h a l l b e I na c c o r d a n c e w i t h M I L - STW? 9 0 , e x c e p t t h a t COIOrS I n d i c a t i n g e n v i r o nme n t a lr e s i s t a n c e s h a l l n o t b e u s e d . T h e f l u f d emp l o y e d f o r ma r k ~ n g s h a l l b e wh i t ei n c o l o r , e x c e p t t h a t f l u i d emp l o y e d f o r ma r k i n g wh i t e s y n t h e t ~ c r u b b e r s h a l l

b e b l a c k I n c o l o r . T h e ma t e r i a l s h a l l b e ma r k e d w i t h t h e f o l l ow i n g :

- P a r t n umb e r ( s e e 6 . 2 . 1 ) , I f a n y

- Ma n u f a c t u r e r s d e s i g n a t i o n ( c omp o u n d n umb e r ) , f o r s h e e t a n d s t r i p o n l y

- Ma t e r i a l c l a s s n umb e r ( s e e 1 . 2 . 1 ) , I nmn e d i a t e l yf o l l owe d b y t h e ma t e r i a lg r a d e n umb e r I n p a r e n t h e s i s ( s e e 1 . 2 . 2 ) , a n d t h e ma t e r i a l t y p e ( s e e1 . 2 . 1 ) f o r C l a s s e s 2 a n d 4 ; f o r e x amp l e , C l a s s 2 , G r a d e 4 0 , T y p e A , s h a l lb e ma r k e d 2 ( 4 0 ) A .

- T h e c u r e d a t e a n d “ u s e b y ” d a t e ( s e e 3 . 8 ) s t a t e d b y y e a r a n d q u a r t e r( f o r e x amp l e : 4 0 9 4 I n d i c a t e s t h e f o u r t h q u a r t e r o f c a l e n d a r y e a r 1 9 9 4 ) .

3 . 9 0 1 ~ . Un l e s s o t h e r w i s e s p e c l f ~ e dI n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 ) , t h e I d e n t l f l c a t i o n ma r k l n s

! !s p e c l f l e d i n 3 . 9 s h a l l a p p e a r a t l e a s t o n c e o n e a c h s q u a r e f o o t ( . 0 9 m ) o fs h e e t a n d s t r i p ma t e r i a l 1 2 I n c h e s ( 3 0 . 5 cm ) o r mo r e I n w i d t h , a n d s h a l la p p e a r a t l e a s t o n c e o n e a c h l l n e a r f o o t o f s h e e t o r s t r i p ma t e r i a l l e s s t h a n1 2 I n c h e s ( 3 0 . 5 cm ) w i d e .

3.9.2 ~. unless Otherwise s P e c i f ~ e dI n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 ) , t h e I d e n t l f l c a t l o n ma r k i n g ss p e c i f i e d I n 3 . 9 s h a l l a p p e a r a t l e a s t o n c e f o r e v e r y 1 2 I n c h e s ( 3 0 . 5 cm ) o fl e n g t h .

.

3 . 9 . 3 ~ . u n l e s s O t h e r w l $ es p e c l f l e d i n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 ) , t h e l d e n t l f ! c a t i o n

ma r k i n g s s p e c i f i e d i n 3 . 9 s h a l l a p p e a r o n c e o n t h e o u t s i d e o f t h e e n v e l o p e i nwh i c h t h e i n d i v i d u a l p a r t s a r e f u r n i s h e d ( s e e 5 . 1 . 1 . 1 ) i n a d d i t i o n t o t h ema r k i n g s r e q u i r e d I n S e c t i o n 5 .

3 . 1 0 ~ . T h e e l a s t ome r i c ma t e r i a l s s h a l l b e c omp o u n d e d a n dp r o c e s s e d s u c h t h a t t h e r e s u l t l n g ma t e r i a l me e t s t h e r e q u i r eme n t s o f t h l ss p e c l f l c a t l o n . De f e c t s i n u o r k n a n s h l p s h a l l b e d e t em l n e d { n a c c o r d a n c e w i t h4 . 4 . 2 . 1 . E x t r u s i o n s 1 6 8 i n c h e s ( 4 2 6 . 6 m ) i n l e n g t h o r l e s s s h a l l b e c u r e d I ns t r a i g h t l e n g t h s t o a v o i d l o n g ? t u d l n a l c u r v a t u r e wh ! c h ma y l mp a l rs e r v l c e a b i l t t y .

4 . QUAL I TY ASSURANCE PROV I S I ONS

4 * 1 ~ * Un l e s s o t h e r w f s e s p e c ! f } e d t n t h ec o n t r a c t o r p u r c h a s e o r d e r c t h e c o n t r a c t o r I s r e s p o n s i b l e f o r t h e p e r f o r ma n c eo f a l l I n s p e c t i o n r e q u i r eme n t s ( e x am l n a t l o n s l n d t e s t s ) a s s p e c l f l e d h e r e i n .E x c e p t a s o t h e r w i s e s p e c ~ f i e d I n t h e c o n t r a c t o r p u r c h a s e o r d e r , t h ec o n t r a c t o r ma y u s e h f s own o r a n y o t h e r f a c t l l t ~ e s s u t t a b l e f o r t h ep e r f o r mmc e o f t h e I n s p e c t I o nr e q u i r e me n t ss p e c l f l e d h e r e l n ,unlessd l s a p p r o v@c lb y t h e Go v@wn t . me 6 o v e r n a e n t r e s e r v e s t h e r l g t i t t o p e r f o r ma n y o f t h e t ms p e c t f cms s e t f o r t h I n t h e s p e c i f i c a t i o n wh e r e such I n s p e c t I o n sa r e d e eme d n e c e s s a r y t o e n s u r e s u p p l l e s a n d s e r v i c e s c o n f o r m t o p r e s c r i b e dr e q u i r eme n t s .

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M I L - R - 6 8 5 5 E

4 . 1 . 1 o n s l b l l l t y f o r cOlllDl l aw A l l i t ems mu s t me e t a l l r e q u i r eme n t so f s e c t i o n s 3 a n d 5 . T h e i n s p e c t i o n s e t f o r t h i n t h i s s p e c i f i c a t i o n s h a l lb e c ome a p a r t o f t h e c o n t r a c t o r ’ s o v e r a l l I n s p e c t i o n s y s t emo r q u a l i t yp r o g r am . T h e a b s e n c e o f a n y I n s p e c t i o n r e q u i r eme n t s i n t h e s p e c i f i c a t i o ns h a l l n o t r e l l e v e t h e c o n t r a c t o r o f t h e r e s p o n s i b i l i t y o f e n s u r i n g t h a t a l lp r o d u c t s o r s u p p l i e s s u bm i t t e d t o t h e Go v e r nme n t f o r a c c e p t a n c e c omp l y w i t ha l l r e q u i r eme n t s o f t h e c o n t r a c t . S amp l i n g i n s p e c t i o n , a s p a r t o fma n u f a c t u r i n g o p e r a t i o n s , I s a n a c c e p t a b l e p r a c t i c e t o a s c e r t a i n c o n f o r ma n c et o r e q u i r eme n t s , h owe v e r , t h i s d o e s n o t a u t h o r i z e s u bm i s s i o n o f k n own d e f e c t i v e

ma t e r i a l , e i t h e r I n d i c a t e d o r a c t u a l , n o r d o e s i t c omm i t t h e Go v e r nme n t t oa c c e p t d e f e c t i v e ma t e r f a l .

4 . 2 $ 3 a s s l f i c a t i o n o f i r me c t i o n s . T h e I n s p e c t i o n r e q u i r eme n t s s p e c i f i e dh e r e i n a r e c l a s s i f i e d a s f o l l ows :

F i r s t a r t i c l e i n s p e c t i o n ( s e e 4 . 3 ) .~ ; Qu a l i t y c o n f o r ma n c e i n s p e c t i o n ( s e e 4 . 4 ) .

4 . 3 . F I r s t a r t i c l e l n sDe c t t oQ F i r s t a r t i c l e i n s p e c t i o n s h a l l c o n s i s t s o ft h e t e s t s s p e c i f i e d i n T a b l e V I I : A s u f f i c i e n t n umb e r o f f i r s t a r t i c l e t e s ts amp l e s ( s e e 4 . 3 . 1 ) t o c o n d u c t t h e t e s t s I n T a b l e VII s h a l l b e f o r wa r d e d t oa n d t e s t e d b y a l a b o r a t o r y a p p r o v e d b y t h e p r o c u r i n g a c t i v i t y ( s e e 6 . 2 a n d6 . 6 ) . A l l ma t e r i a l s u p p l i e d t o t h i s s p e c i f i c a t i o n s h a l l b e ma n u f a c t u r e d u s i n gt h e s ame f o r mu l a t i o n a n d me t h o d s u s e d t o o b t a i n t h e f i r s t a r t i c l e s amp l e su n l e s s a c h a n g e h a s b e e n a p p r o v e d b y t h e p r o c u r i n g a c t i v i t y .

4 . 3 . 1 ~ . E x c e p t a s I n d i c a t e d b e l ow , f i r s t a r t i c l et e s t s p e c i me n s s h a l l b e f a b r i c a t e d f r om t h e e n d I t ems . I f t h e e n d I t ems f o rs h e e t , s t r i p , o r e x t r u s i o n s a r e o f s u c h s h a p e s t h a t s u i t a b l e t e s t s p e c i me n sc a n n o t b e o b t a i n e d f r om t h em , t h e t e s t s p e c ~me n s s h a l l b e f a b r i c a t e d f r om at e s t e x t r u s i o n . T h e t e s t e x t r u s i o n s h a l l b e p r e p a r e d f r om t u b i n g 1 . 0 0 0 a . 0 1 6I n c h ( 2 5 . 4 * 0 . 4 1 n a n )ODb y 0 . 0 7 5 * 0 . 0 0 8 i n c h ( 1 . 9 t 0 . 2 cm ) I n wa l lt h i c k n e s s wh i c h h a s b e e n me c h a n i c a l l y s p l i t a n d f l a t t e n e d i n t o a s t r i p a n ds u b s e q u e n t l y c u r e d . T h e t e s t e x t r u s i o n s h a l l b e c omp o s e d o f t h e s ame b a t c h o fr u b b e r a n d c u r e d u n d e r t h e s ame c o n d i t i o n s a s t h e ma t e r i a l i t r e p r e s e n t s . Ifthe end i t ems f o r mo l d e d p a r t s a r e o f s u c h s h a p e s t h a t s u i t a b l e t e s t s p e c i me n sc a n n o t b e c u t f r om t h em , t h e t e s t s p e c i me n s s h a l l b e f a b r i c a t e d f r om mo l d e dt e s t s l a b s 6 x 6 x 0 . 0 7 5 f n . ( 1 5 0 x 1 5 0 x 1 . 9mm ) . T h e t e s t slabs shall be

mo l d e d f r o n t h e s ame b a t c h o f r u b b e r a n d c u r e d u n d e r t h e s ame c o n d i t i o n s a st h e mo l d e d p a r t s t h e y r e p r e s e n t .

4 . 3 . 1 . 1 s~ w i t h f i r s t a r t t c l e . T h e s u p p l f e rs h a l l s u bm i t t wo c o p i e s o f t h e f i r s t a r t i c l e I n s p e c t I o n r e p o r t s h ow t n gc o n f o r ma n c e t o t h e t e s t r e q u ~ r eme n t s I n T a b l e VII (see 6,3).

4.3.2 m~. !f a c o n t r a c t o r h a s p r e v i o u s l y d e l i v e r e d ma t e r i a lI n a c c o r d a n c e u l t h t h e r e q u ~ r eme n t s o f t h ! s s p e c l f l c a t l o n a n d t h e p r o d u c t h a s

b e e n f o u n d t o b e s a t i s f a c t o r y , t h e r e q u i r eme n t s f o r f i r s t a r t i c l e t n s p e c t ~ o nf o r t h a t p r o d u c t , I n c o n n e c t i o n w i t h a n y s u b s e q u e n t c o n t r a c t o r o r d e r f o r t h a tp r o d u c t , ma y b e wa t v e d a t t h e d ! s c r e t l o n o f t h e p r o c u r i n g a c t l v l t y ( s e e 6 . 2 ) .T h e a p p r o v a l o f f i r s t a r t i c l e s amp l e s o r t h e wa l v l n g o f t h e f i r s t a r t i c l eI n s p e c t I o n s h a l l n o t r e l l e v e t i l e c o n t r a c t o r o f h t s o b l i g a t i o n t o f u l f l l l a l l

o t h e r r e q u i r eme n t s o f t h i s s p e c i f i c a t i o n a n d t h e c o n t r a c t .—

4 . 3 . 3 UE k l h e t h e ro r n o t f i r s t a r t i c l e \ n s p e c t ! o n I sr e q u ! r e d ( s e e 4 . 3 . 2 ) , t h e c o n t r a c t o r s h a l l c e r t i f y I n w r t t t n g t h a t t h e ma t e r i a l

me e t s a l l t h e r e q u i r eme n t s o f t h i s s p e c i f i c a t i o n ( s e e 6 . 3 ) .

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1 0 L - R - 6 8 5 5 E

4 . 4 ~ .

4 . 4 . 1 L o t f o r ma t i ~ . A l o t s h a l l c o n s t s t o f a l l I t ems o f t h e s ame f o r m( s u c h a s s h e e t ) , ma n u f a c t u r e d f r om t h e s ame l o t o f r u b b e r , p r o c e s s e d i n o n ec o n t i n u o u s r u n a n d r e a d y f o r i n s p e c t i o n a t o n e t t me . A l o t o f r u b b e r s h a l l b et h e amo u n t o f c omp o u n d e d ma t e r i a l r u n t h r o u g h a m i l l o r m i x e r a t t h e s ame t i me .

4.4.2 ~.

4 . 4 . 2 . 1 ~V s u a l e x am i n a t i o n f o r ~wo r .

4 . 4 . 2 . 1 . 1 d e d p a t i S amp l e s o f mo l d e d p a r t s f o r v f s u a l e x am i n a t i o n a n dp r o d u c t ma r k i n g s h a l l b : s e l e c t e d t n a c c o r d a n c e w i t h M I L - STD - 1 0 5 , I n s p e c t I o nL e v e l II. T h e s amp l e u n i t s h a l l b e o n e mo l d e d p a r t . E a c h s amp l e u n i t s e l e c t e df r om t h e l o t s h a l l b e e x am i n e d f o r d e f e c t s a s s p e c i f i e d i n H I L - STD - 4 0 7 .

A c c e p t a n c e c r i t e r i a s h a l l b e a s s p e c i f i e d i n t h e c o n t r a c t o r p u r c h a s e o r d e r( s e e 6 . 2 a n d 6 . 7 ) .

4 . 4 . 2 . 1 . 2 ~ . S amp l e s o f s h e e t s , s t r i p sa n d e x t r u d e d s h a p e s f o r v i s u a l e x am i n a t i o n a n d p r o d u c t ma r k i n g s h a l l b es e l e c t e d i n a c c o r d a n c e w i t h M I L - STD - 1 0 5 , I n s p e c t i o n L e v e l I I . T h e s amp l e u n i ts h a l l b e o n e y a r d ( 0 . 9 1 me t e r s ) . E a c h s amp l e u n i t s e l e c t e d f r om t h e l o t s h a l lb e e x am i n e d f o r d e f e c t s a s s p e c i f i e d i n M I L - STD - 2 8 9 f o r s h e e t a n d s t r i p , a n d# l I L - STD - 2 9 8 f o r e x t r u d e d s h a p e s . De f e c t s I n ma r k i n g , s u c h a s ~ n c omp l e t e , n o tl e g i b l y i d e n t i f i e d , o r a s s p e c l f l e d i n 3 . 9 , s h a l l b e c o n s i d e r e d m i n o r .

A c c e p t a n c e c r i t e r i a s h a l l b e a s s p e c i f i e d i n t h e c o n t r a c t o r p u r c h a s e o r d e r( s e e 6 . 2 a n d 6 . 7 ) .

4 . 4 . 2 . 1 . 2 . 1 o f r o l 1s ~ s i n wo r ~I n a d d i t i o n t o t h e i n s p e c t i o n r e q u i r eme n t s i n 4 . 4 . 2 . 1 . 2 , s amp l e s o f s h e e t “

ma t e r i a l s u p p l l e d i n r o l l s s h a l l b e e x am i n e d f o r d e f e c t s i n wo r kma n s h i p a ss p e c i f i e d i n T a b l e VIII. T h e s amp l e u n i t s h a l l b e o n e r o l l s e l e c t e d i na c c o r d a n c e w i t h M I L - STD - 1 0 5 . I n s p e c t i o n L e v e l II. ACCeDhfICt? c r i t e r i a s h a l lb e a s s p e c i f i e d i n t h e c o n t ~ a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 a n d 6 . 7 ) .

TABL E V I I I . Defects f o r t i ~ i a l sum] led in rol1s.

An y cut-out laraer t h a n f o u r f n c h e s ( 1OSW d l w t e r .r e o u r Cu t - o t i De r r o l 1 .

Mo r e ~ t s i n ~ 1 0 l ~ r f e e t ( w ) .Ro l l c o n t a i n s mo r e t h a n t h r e e p i e c e s . E a c h p i e c e s h a l l b e n o t

e s s o f e e n ~ o f # 0 e n t i r e r o l 1 .

4 . 4 . 2 . 2 ~ .

4 . ~ . 2 . 2 . l MQUAQWS . S amp l e s o f m l d e d p a r t s f o r d i me n s i o n a le x am i n a t i o n s h a l l b e s e l e c t e d i n - a c c o r d a n c e w i t h M I L - STD - 1 0 5 , I n s p e c t I o n L e v e l1 1 . T h e s amp l e u n i t s h a l l b e o n e mo l d e d p a r t . E a c h s amp l e u n i t s e l e c t e d f r omt h e l o t s h a l l b e d h n e n s l o n a l l y e x am i n e d f o r c o n f o r ma n c e t o 3 . 4 . 3 . A c c e p t a n c ec r i t e r i a s h a l l b e a s s p e c i f i e d I n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 a n d6 . 7 ) .

4 . 4 + 2 . 2 . 2 ~ . s amp l e s O f s h e e t s , s t r i p s— a n d e x t r u d e d s h a p e s f o r d i me n s i o n a l e x am i n a t i o n s h a l l b e s e l e c t e d i n a c c o r d a n c e

w i t h M I L - STD - 1 0 5 , I n s p e c t I o n L e v e l I I . T h e sample u n i t s h a l l b e o n e y a r d .E a c h s amp l e u n i t s e l e c t e d s h a l l b e d i me n s i o n a l l y e x am i n e d f o r c o n f o r ma n c e t o3 . 4 . 1 o r 3 . 4 . 2 , a s a p p l i c a b l e . A c c e p t a n c e c r l t e r l a s h a l l b e a s s p e c i f ~ e d I nt h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 a n d 6 . 7 ) .

1 1

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/ 4 1 L - R - 6 8 5 5 E

4 . 4 . 2 . 3 ~ . An e x am~ n a t l o n s h a l l b e ma d e t od e t e r m~ n e t h a t t h e p a c k a g i n g , p a c k f n g a n d ma r k i n g c omp l y w i t h t h e r e q u i r eme n t so f S e c t i o n 5 o f t h i s s p e c l f ! c a t l o n . T h e s amp l e u n i t f o r t h i s e x am i n a t i o ns h a l l b e o n e s h l p p { n g c o n t a i n e r , f u l l y p a c k e d , s e l e c t e d j u s t p r i o r t o t h ec ? o s l n g o p e r a t f o n . T h e s h t p p l n g c o n t a i n e r , f u l l y p r e p a r e d f o r d e l l v e r y , s h a l lb e e x am ! n e d f o r c l o s u r e d e f e c t s . S amp l e s s h a l l b e s e l e c t e d I n a c c o r d a n c e w i t hM I L - STD - 1 0 5 , I n s p e c t I o n L e v e l I I . E a c h s h i p p ! n g c o n t a i n e r s e l e c t e d a s as amp l e u n i t s h a l l b e e x am~ n e d f o r d e f e c t s i n p a c k a g i n g , p a c k i n g a n d ma r k i n g I na c c o r d a n c e w i t h T a b l e I X . A c c e p t a n c e c r i t e r i a s h a l l b e a s s p e c l f t e d i n t h ec o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 a n d 6 . 7 ) .

TABL E I X . ~ r e s e r v a t l o n . Da c k i n a . a n d ~ k i n g d e f e c t s .

E x am l n e I De f e c t

P r e s e r va t l o n No t l e v e l sDe c l f l e d ( s e e 5 . 1 ) .t i ~ e c i f l e d ( s e e 5 . 2 ) .Co n t a i n e r n o t a s s p e c l f l e d ; c l o s u r e s n o t a c c omp l i s h e d

c i f l e d o r r @g . @ r e d - s o r m . aW l a l s s e eP a c k i n g An y n o n c o n f o r m i n g c omp o n e n t ; c omp o n e n t m l s s i r t g ,d ama g e d

( a l l f o r ms ) Q o t h e s e e c t l e a f f e c t I n a s e r v i w~I k a d e q u ; e a p l c a t l ; n o f c omp o n e n t s , s u c h a s : i n c omp l e t ec l o s u r e s o f case I l n e r s , c o n t a i n e r f l a p s , l o o s e o rI n a d e q u a t e s t r a p p i n g . b u l g e d o r d i s t o r t e d c o n t a i n e r s..-( s e e 5 2 ) .P a p e r b e t we e n s h e e t s o r d u s t t n g p owd e r s d s s l n g o r n o t

o v e r U1 1 a r e a a )P a c k i n g Co n t a ~ n e r I n s i d e h e i g h t e x c e e d s 1 0 I n c h e s ( . 2 5 m ) ( s e e

( f l a t s h e e t s )Sh e e t s a r e c o nm r e s s e d o r d e f o r me d t n p a c k i n g a r r a n g eme n t

P a c k ! n g( r o l l s o f s t r i p

a n d s h e e t )

l a )P a p e r o r d u s t i n g p owd e r ( a s a p p l i c a b l e ) m l s s l n g o r d o e sn o t c o v e r f u l l a r e a o f c o n t a c t o f t h e r u b b e r s t r i p o r

L e n g t h o f r o l l s n o t a s s p e c i f i e d ; I n d l v l d u a l r o l l s n o t~ . l b a n d c ) .

5 . 2 . l b a n d c )Mo r e t h a n ~ n e r o l l p e r s h l p p l n g c o n t a i n e r ( s e e 5 . 2 . l b

r e n DCQYi d e r i ~ %e e

L e n g t h s 1 4 f e e t ( 4 . 3 m ) o r l e s s n o t p a c k e d i n s t r a i g h tl e n g t h s ; l o n g e r t h a n 1 4 f e e t ( 4 . 3 a 0 n o t c o i l e d ( w i t h o u t

P a c k ~n g e( e x t r u s i o n s ) Du s t f n g p owd e r m l s s l n g o r d o e s n ’ t c o v e r t h e e n t i r e

e ~ e a o f B e x ~ s e eE x t r u d e d s h a p e s o t h e r t h a n t u b i n g n o t w r a p p e d ~ n f u l ll e n g t h w i t h a s u i t a b l e p a p e r o r p l a s t i c s l e e v l n g ( s e e

5 . 2 . l d )P a c k i n g d I n ~ w l t h _M . I LP 4 8 6 1- - 5 . Z . J@ .

( mo l d e d s h a p e s & No t l n d t v l d u a l l y w r a p p e d ; n o t p a c k e d t o p r e v e n ts ) o n

I n t e r i o r o r e x t e r i o r ma r k i n g s ( a s a p p l i c a b l e ) om i t t e d ,Ma r k l n g I l l e g l b l e , I n c o r r e c t , i n c omp l e t e , o r n o t i n a c c o r d a n c e

s s ~ 5 . 3 )L e s s t h a n s p e c l f l e d o r I n d i c a t e d l l n e a r f e e t o r q u a n t i t y

Co u n t o f s h e e t s , s h a p e s , t u b e s , o r s t r i p s , a s a p p l i c a b l e

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M I L - R - 6 8 5 5 E

4 . 4 . 2 . 4 Ph y s i c a l ~me c ~ l c a 1 moDe t v t e s ~ Ph y s i c a l a n d me c h a n i c a lp r o p e r t y t e s t i n g s h a l l b e c o n d u c t e d I n a c ~ o r d a n c e w i t h T a b l e X . A s u f f l c ! e n tq u a n t i t y o f t h e s y n t h e t i c r u b b e r i t ems t o c o n d u c t t h e t e s t s i n T a b l e X s h a l lb e s e l e c t e d a t r a n d om f r a n e a c h l o t .

4 . 4 . 2 . 4 . 1 T e s t sDe c l me n $ E x c e p t a s I n d i c a t e d b e l ow , t e s t s p e c i me n s s h a l lb e f a b r i c a t e d f r om t h e i t ems - s u p p l i e d i n t h e l o t . If s h e e t , s t r i p , o re x t r u s i o n s a r e s u p p l ~ e d i n s u c h s h a p e s t h a t s u i t a b l e t e s t s p e c i me n s c a n n o t b eo b t a i n e d f r om t h em , t h e t e s t s p e c i me n s s h a l l b e f a b r i c a t e d f r om a t e s te x t r u s i o n . T h e t e s t e x t r u s i o n s h a l l b e p r e p a r e d f r om t u b i n g 1 . 0 0 0 * 0 . 0 1 6( 2 5 . 4 t 0 . 4 1 mm ) OD b y 0 , 0 7 5 * 0 . 0 0 8 i n c h ( 1 . 9 * 0 . 2 cm ) I n wa l l t h i c k n e s s

wh i c h h a s b e e n me c h a n i c a l l y s p l i t a n d f l a t t e n e d i n t o a s t r i p a n d s u b s e q u e n t l yc u r e d . T h e t e s t e x t r u s i o n s h a l l b e c omp o s e d o f t h e s ame b a t c h o f r u b b e r a n dc u r e d u n d e r t h e s ame c o n d i t i o n s a s t h e l o t o f ma t e r i a l i t r e p r e s e n t s . Ifmo l d e d i t ems a r e s u p p l i e d i n s u c h s h a p e s t h a t s u i t a b l e t e s t s p e c i me n s c a n n o tb e c u t f r om t h em , t h e t e s t s p e c i me n s s h a l l b e f a b r i c a t e d f r om mo l d e d t e s ts l a b s 6 x 6 x 0 . 0 7 5 t n . ( 1 5 0 x 1 5 0 x 1 . 9 a n ) . T h e t e s t s l a b s s h a l l b e mo l d e df r om t h e s ame b a t c h o f r u b b e r a n d c u r e d u n d e r t h e s ame c o n d i t i o n s a s t h e l o to f mo l d e d p a r t s t h e y r e p r e s e n t .

4 . 4 . 2 . 4 . 2 ~ . F a i l u r e o f a n y s amp l e t o me e t t h e t e s tr e q u i r eme n t s s p e c i f i e d h e r e i n s h a l l r e s u l t i n r e j e c t i o n o f t h e l o t .

4 . 5 ~ e c t i o n c o n d i t i o n s . A l l t e s t s p e c i me n s s h a l l b e c o n d i t i o n e d a n dt e s t e d a t s t a n d a r d c o n d i t i o n s , u n l e s s o t h e r w i s e s p e c t f f e d h e r e i n .

4 . 5 . 1 u ! . S t a n d a r d c o n d i t i o n s s h a l l b e 7 5 ° t 5 ° F( 2 4 * * 3 ° C ) a n d 5 0 A 5 p e r c e n t r e l a t i v e h um i d i t y .

4 . 6 . 1 J e s t s u n d e r s t a n d a r d c o n d i t i o n s ( s e e 4 . 5 . 1 ) .

4 . 6 . 1 . 1 ~ . Ha r d n e s s t e s t i n g s h a l l b e d e t e r m i n e d o n o n e s p e c i me n i na c c o r d a n c e w i t h ASTM D2 2 4 0 . T h e h a r d n e s s s h a l l b e t h e a v e r a g e o f 5 r e a d i n g sf o r e a c h s p e c i me n t e s t e d .

4 . 6 * 1 . 2 ~ . T e n s i l e s t r e n g t h a n d e l o n g a t i o ns h a l l b e d e t e r m i n e d o n a t l e a s t f i v e s p e c i me n s ~ n a c c o r d a n c e w i t h ASTM 0 4 1 2u s i n g D l e C t o o b t a i n s p e c i me n s .

4 * 6 * 1 * 3 ~ . Sp e c l f l c g r a v t t y s h a l l b e d e t e r m i n e d o n t wos p e c i me n s i n a c c o r d a n c e w i t h ASTM D7 9 2 .

4 . 6 . 1 . 4 ~ . T y p e A s p e c l ~ n s s h a l lb e p r e p a r e d t n a c c o r d a n c e w i t h AST i 4D5 1 8 , p r o c e d u r e A . T y p e B s p e c i me n s s h a l lb e p r e p a r e d i n a c c o r d a n c e w i t h ASTM D5 1 8 , p r o c e d u r e B . Sp e c t me n s s h a l l b et e s t e d i n a c c o r d a n c e w i t h ASTM D1 1 4 9 . O z o n e c o n c e n t r a t i o n , e x p r e s s e d I n o z o n e

p a r t i a l p r e s s u r e s , s h a l l b e 1 0 0 * 5mP a f o r T y p e A ma t e r i a l a n d SO* 5 mP a f o rT y p e Bma t e r t a ? . E x p o s u r @ p e r b d f o r T y p e A a n d T y p e B s p e c i me n s s h a l l b e 1 6 8h o u r s m i n i mum . Ob s e r v a t i o n ma g n i f i c a t i o n s h a l l b e 7 x .

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M I L - R - 6 8 5 5 E

4 . 6 . 1 - 5 ~ . E i g h t p l a $ t f c $ t r i p s , 1 b y 7 b y0 . 2 5 i n c h e s ( 2 5 . 4 b y 1 7 7 . 8 b y 6 . 4 1mn ) , s h a l l b e p r e p a r e d . Four s h a l l b e c u tf r om a p i e c e o f a c r y l i c p l a s t l c c o n f o r m i n g t o M I L - P - 5 4 2 5 , F i n i s h A a n d f o u rs h a l l b e c u t f r om a p i e c e o f p o l y c a r b o n a t e p l a s t l c c o n f o r m~ n g t o M I L - P - 8 3 3 1O .T h e p l a s t i c s h a l l b e c l e a n e d w i t h a l i p h a t l c n a p h t h a c o n f o r m i n g t o T T - N - 9 5 a n dt h e n a l l owe d t o a i r - d r y a t s t a n d a r d c o n d ~ t l o n s f o r a m i n i mum o f 2 4 h o u r s p r i o rt o t e s t i n g . A s s p e c i f i e d o n F i g u r e 1 , t h e p l a s t t c s t r i p s s h a l l b e s e t u p a sc a n t i l e v e r b e ams i n a c i r c u l a t i n g a l r o v e n ma i n t a i n e d a t a t emp e r a t u r e o f1 1 0 ° ~ 2 ° F ( 4 3 ° * 1 ’ C ) f o r 7 0 ~ 1 h o u r s . T h e b e ams s h a l l b e l o a d e d t o p r o d u c ea n o u t e r f i b e r t e n s i l e s t r e s s o f 2,000 P s i ( 1 3 . 8 MP a ) a t t h e f u l c r um a sd e t e r m i n e d I n 4 . 6 . 1 . 5 . 1 . T e n m i n u t e s a f t e r t h e b e ams h a v e b e e n s t r e s s e d , t h e ys h a l l b e e x am i n e d f o r c r a z i n g . B e ams i n wh i c h c r a z i n g h a s o c c u r r e d s h a l l b er e p l a c e d w i t h o t h e r s t h a t p a s s t h e 1 0 m i n u t e t e s t . C l a s s e s 4 a n d 5 s p e c i me n s ,1 b y 2 b y 0 . 0 7 5 I n c h e s ( 2 5 . 4 b y 5 0 . 8 b y 1 . 9mm ) , s h a l l b e p l a c e d I n I n t i ma t ec o n t a c t w i t h t h r e e o f t h e a c r y l i c b e ams a n d t h r e e o f t h e p o l y c a r b o n a t e b e amsd i r e c t l y o v e r t h e f u l c r um . T h e s p e c i me n s s h a l l b e h e l d I n f i r m c o n t a c t w i t ht h e s u r f a c e o f t h e p l a s t l c s t r i p s b y a p p l y i n g a sma l l l o a d ( 3 0 u n c e ( 8 5 . 1

g r ams ) s h o t b a g ) o n t o p o f e a c h r u b b e r s p e c i me n , T h e r ema l n l n g t wo b e ams ,u n d e r t h e s ame s t r e s s w i t h o u t r u b b e r s p e c i me n , s h a l l b e emp l o y e d a s c o n t r o l s .T h e e x am i n a t i o n s f o r c r a z i n g s h a l l b e ma d e wh i l e t h e p l a s t l c i s u n d e r s t r e s s ,a t t h e e n d o r a t a n y t i me w i t h i n t h e 7 0 e 1 h o u r s t e s t p e r i o d , T h e b e ams w i t hr u b b e r s p e c i me n s r emo v e d , s h a l l b e o b s e r v e d f o r c r a z i n g o v e r a s o u r c e o f l l g h ta t s u c h a n a n g l e t h a t t h e I l g h t w i l l b e r e f l e c t e d t o t h e e y e f r om t h e s u r f a c e so f a n y c r a z i n g f i s s u r e s wh i c h a r e p r e s e n t . T o p r e v e n t o v e r h e a t i n g o f b e ams ,t h e l i g h t s o u r c e s h a l l b e u t i l i z e d o n l y d u r i n g e x am i n a t i o n f o r c r a z i n g . Int h e e v e n t t h a t c r a z i n g o c c u r s t n o n e o f t h e c o n t r o l s , t h e t e s t s h a l l b er e p e a t e d f o r t h a t p a r t i c u l a r p l a s t ~ c . E d g e c r a z i n g , wh e n o b s e r v e d w l t h ! n0 . 1 2 5 I n c h ( 3 . 2 n u n ) f r om t h e e d g e o f b e am , s h a l l b e d i s r e g a r d e d .

4.6.1 . 5 . 1 G iikWtM. T h e l o a d r e q u i r e d f o r e a c h b e am s h a l l b e c a l c u l a t e da s f o l l ows :

P=W22 4

Hh e r e :p = L o a d i n p o u n d s ( k g ) ( a p p l l e d a t f r e e e n d o f b e am - 4

I n c h e s ( 1 0 . 2 cm ) f r om f u l c r um ) .B - 1 4 1 d t h o f p l a s t i c s t r i p ( me a s u r e d t o n e a r e s t O . 0 0 1

I n c h ( 0 . 0 2 5 Rm I ) ) .D= De p t h o f p l a s t l c s t r i p ( me a s u r e d t o n e a r e s t O . 0 0 1

I n c h ( 0 . 0 2 5 nwn ) ) .s - S t r e s s I n p o u n d s p e r s q u a r e I n c h ( MP a ) = 2 , 0 0 0 ( 1 3 . 8 ) .

4 . 6 . 2 t s a f ~ l e r a t e d a - ( o v ~ .

4 . 6 . 2 = 1 ~ . T h e r e q u i r e d s p e c i me n sf o r e a c h t e s t t o b ec o n d u c t e ds h a l l b e s u b j e c t e d t o a c c e l e r a t e d a g i n g f o r 7 0 A 1 h o u r s i n a n a l rc i r c u l a t i n g o v e n a t a t emp e r a t u r e o f 2 \ 2 ° ~ 2 * F ( 1OO* ~ l *C ) . A f t e r t h e a g i n gp e r i o d , t h e s p e c i me n s s h a l l b e r emo v e d f r om t h e o v e n a n d a l l owe d t o r e s t a ts t a n d a r d c o n d i t i o n s f o r n o t l e s s t h a n 1 6 h o u r s n o r mo r e t h a n 7 0 h o u r s , b e f o r ebeing $ubJected to tests f o r c h a n g e I n h a r d n e s s , t e n s i l e s t r e n g t h , e l o n g a t i o na n d we i g h t . F o r t h e d e t e r m i n a t i o n o f c omp r e s s i o n s e t , t h e s p e c ! ~ n s h a l l b er emo v e d f r om t h e c cwp r e s s l o n f i x t u r e a f t e r t h e a g i n g p e r ~ o d a n d a l l owe d t or e s t o n a wo o d s u r f a c e a t s t a n d a r d c o n d i t i o n s f o r a t l e a s t 3 0 n d n u t e s b e f o r ec omp r e s s i o n s e t I s d e t e r m i n e d .

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M I L - R - 6 8 5 5 E

4 . 6 . 2 - 2 ~ . A specimen f r om e i t h e r t h e c h a n g e I n t e n s i l es t r e n g t h { s e e 4 . 6 . 2 , 3 ) o r t h e c h a n g e t n we i g h t ( s e e 4 . 6 . 2 . 4 ) t e s t s h a l l b eu s e d t o d e t e r m i n e t h e c h a n g e i n h a r d n e s s . A f t e r a g i n g I n a c c o r d a n c e w i t h4 . 6 . 2 . 1 , t h e h a r d n e s s v a l u e s h a l l b e d e t e r m l n e d t n a c c o r d a n c e w i t h 4 . 6 . 1 . 1 .T h e c h a n g e I n h a r d n e s s d e t e r m i n a t i o n s h a l l b e e x p r e s s e d a s c h a n g e I n h a r d n e s s -p o ! n t s f r om t h e s t a n d a r d c o n d i t i o n v a l u e .

4 . 6 . 2 . 3 P e r c e n t c h a n g e I n t e n s i l e s t r ma t h a n d @ i o n - T h e t e n s i l es t r e n g t h a n d e l o n g a t i o n p r o p e r t i e s s h a l l b e d e t e r m i n e d I n a c c o r d a n c e w i t h4 . 6 . 1 . 2 a f t e r a g i n g t h e s p e c i me n s i n a c c o r d a n c e w i t h 4 . 6 . 2 . 1 . T h e r e s u l t se x p r e s s e d a s p e r c e n t c h a n g e f o r e a c h me c h a n i c a l p r o p e r t y s h a l l b e c a l c u l a t e da s f o l l ows :

% c h a n g e = H ~ , o oo

Hh e r e :O = S t a n d a r d c o n d l t l o n v a l u e .A - V a l u e a f t e r a g i n g .

4 . 6 . 2 . 4 P e r c e t Ch a n g e i n we l gh t . T h r e e s p e c i me n s a p p r o x i ma t e l y 1 b y 2 b y0 . 0 7 5 I n c h e s ( 2 . 5 n b y 5 . 1 b y . 1 9 cm ) i n t h i c k n e s s s h a l l b e u s e d . T h e s p e c i me n ss h a l l b e h e l d o v e r n ~ g h t I n a d e s i c c a t o r a n d we i g h e d t o t h e n e a r e s t m i l l i g r am( mg ) b e f o r e b e i n g s u b j e c t e d t o o v e n a g i n g a s s p e c i f i e d I n 4 . 6 . 2 . 1 . A f t e r o v e na g i n g , t h e s p e c i me n s s h a l l b e c o o l e d I n a d e s i c c a t o r f o r n o t l e s s t h a n 2 h o u r sn o r mo r e t h a n 7 0 h o u r s a n d a a a l n we l q h e d t o t h e n e a r e s t mg . T h e c h a n g e ~ nwe i g h t s h a l l b e c a l c u l a t e d a ; f o l l ow ; :

B&nlx,m% c h a n g e I n we i g h t = M l

Hh e r e :HI = Initial weight.U2 = He i g h t a f t e r o v e n a g i n g .

~ . Comp r e s s I o n s e t d e t e r m ! n a t t o n s h a l l r e c o n d u c t e d4 . 6 . 2 . 5i n a c c o r d a n c e w~ t h ASTM D3 9 5 , Me t h o d B . A f t e r o v e n a g i n g a s s p e c t f l e d i n

4 . 6 . 2 . 1 , t h e s p e c i me n s s h a l l b e r emo v e d f r om t h e c omp r e s s i o n f t x t u r e a n da l l owe d t o r e s t o n a wo o d s u r f a c e a t s t a n d a r d c o n d i t i o n s f o r a t l e a s t 3 0m i n u t e s b e f o r e c omp r e s s i o n s e t I s d e t e r m i n e d .

4 . 6 . 3 t e s t s ( w r &g r . d l . a n d f u e ~ .

4 . 6 . 3 . 1 ~ . Ch a n g e I n h a r d n e s s s h a l l b e d e t e r m i n e d a f t e rwa t e r hme r s l o n f b r a l l C l a s s e s a n d a f t e r of) l ~ r s i o n f o r C l a s s e s 1 , 2 , a n d4 . Co n d l t h n l n g o f t h e s p e c t me m f o r wa t e r a n d o l l I me r s l o n s h a l l b e a ss p e c i f ! e dI n 4 . 6 . 3 . 4 . 1a n d 4 . 6 . 3 . 4 . 2r e s p e c t i v e l y . Sp e c l mms f r c me l t h e r t h ec h a n g e ~ n t e n s l l t s t r e n g t h ( s e e 4 . 6 . 3 , 2 )or volume (see 4 . 6 . 3 . 3 ) t e s t s s h a l lb e u s e d t o d e t e r m ! n e c h a n g e I n h a r d n e s s . A f t e r c o n d i t b n l n g , t h e h a r d n e s sv a l u e s h a l l b e d e t e m l n e d I n a c c o r d a n c ew i t h 4 . 6 . 1 . 1 . T h e c h a n g e I n h a r d n e s sd e t . e r d n a t h shall bai e x p r e s s e d a s t h e c h a n g e \ n h a r d n e s s p c d n t s f r om t h es t a n d a r dc o n d l t t o nv a l u e .

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M I L - R - 6 8 5 5 E

4 . 6 . 3 . 2 Gh a a e I n t m l l e s t r - Ch a n g e ~ n t e n s i l e s t r e n g t h s h a l l b ed e t e r m i n e d a f t e ; 0 1 1 i mn e r s l o n f o r C l i i ~ s e s2 a n d 4. A f t e r c o n d i t i o n i n g I na c c o r d a n c e w i t h 4 . 6 . 3 . 4 . 2 , t h e t e n s i l e s t r e n g t h a n d e l o n g a t i o n p r o p e r t i e ss h a l l b e d e t e r m i n e d \ n a c c o r d a n c e w i t h 4 . 6 . 1 . 2 u s i n g t h e s p e c i me n s o r l g l n a lu n c o n d i t i o n e d c r o s s s e c t i o n a l a r e a f o r t h e c a l c u l a t i o n o f t e n s i l e s t r e n g t h .T h e r e s u l t s e x p r e s s e d a s p e r c e n t c h a n g e f o r e a c h me c h a n i c a l p r o p e r t y s h a l l b ec a l c u l a t e d a s f o l l ows :

Z c h a n g e = &x 1 0 0

Wh e r e :O = S t a n d a r d c o n d l t l o n v a l u e .I = V a l u e a f t e r I mme r s i o n .

4 . 6 . 3 . 3 C km duWm. Ch a n g e i n v o l ume s h a l l b e d e t e r m i n e d a f t e rwa t e r I mme r s i o n f o r a l l C l a s s e s , o i l I mme r s i o n f o r C l a s s e s 1 , 2 , a n d 4 , a n df u e l I mme r s i o n f o r C l a s s 1 . E a c h t e s t s h a l l b e c o n d u c t e d u s i n g t h r e e s p e c i me n s1 b y 2 b y 0 . 0 7 5 I n c h e s ( 2 . 5 b y 5 . 1 b y . 1 9 cm ) . P r i o r t o c o n d l t l o n l n g , t h es p e c i me n s s h a l l b e we i g h e d i n a l r a n d t h e n I n wa t e r u s i n g a n a n a l y t i c a lb a l a n c e . A s a p p l i c a b l e f o r t h e C l a s s b e i n g t e s t e d , t h e s p e c i me n s s h a l l t h e nb e c o n d i t i o n e d f o r wa t e r , o i l , a n d f u e l I mn e r s l o n a s s p e c i f i e d I n 4 . 6 . 3 . 4 . 1 ,4 . 6 . 3 . 4 . 2 , a n d 4 . 6 . 3 . 4 . 3 r e s p e c t i v e l y . A f t e r c o n d l t l o n l n g , t h e s p e c i me n ss h a l l b e r ewe i g h e d i n a i r a n d t h e n I n wa t e r b y me a n s o f a j o l l y o r a n a l y t i c a lb a l a n c e . P e r c e n t a g e c h a n g e I n v o l ume s h a l l b e b a s e d o n t h e o r l g l n a lu n c o n d i t i o n e d v o l ume a n d s h a l l b e c a l c u l a t e d a s f o l l ows :

l i h e r e :

( H3 W4) (M% c h a n g e I n v o l ume - - ~N , ~ ~ 2 ) - U ‘x 1 0 0

w = I n l t l a l ( u n c o n d l t l o n e d ) we i g h t I n a i r .H2 = I n i t i a l ( u n c o n d i t i o n e d ) we i g h t I n wa t e r .W3 = We i g h t I n a i r a f t e r I mme r s t o n .M4= 1 4 e l g h t i n wa t e r a f t e r i mme r s i o n .

4 . 6 . 3 . 4 ~ater.~rslon condlt1 I o n t n g .

4+6.3.401 ~. Sm f me n s s h a l l be c~pleteh’t mme r s e d i n d i s t ~ l l e d wa t e r I n a c c o r d a n c e w i t h AST t 40 4 7 1 f o r 7 0 * 1 h o u r s a t

2 1 2 ” t 2 ° F (lW” t l*C). At t h e e n d o f t h e t a a n e r s ~ o np e r i o d , t h e s p e c ~me n ss h a l l b e r emo v e d f r om t h e h o t I l q u l d a n d i mme d i a t e l y Wn e r s e d ~ n f r e s hd f s t i l l e d wa t e r a t s t a n d a r d c o n d i t i o n s f o r 3 0 * 5 d n u t e s . T h e t e s t s p e c t me n ss h a l l t h e n b e d ~ p p e d r a p i d l y t n a c e t o n e o r a l c o h o l , b l o t t e d l i g h t l y , a n dt e s t e d w l t h t n 3 m i n u t e s .

4 . 6 . 3 . 4 . 2 l o n ~ l t i - ( C l ~ e s 1 . 7 U C l a s s e s 1 , 2a n d 4 s p e c i me n s s h a l l b e c omp l e t e l y i mn e r s e d i n o i l No . 1 i n ~ c c o r d a n c e w i t h

AS l l i D4 7 1 f o r 7 0 ~ 1 h o u r s a t 2 1 2 ° A2 ° F ( 1 0 0 ° k l “ C ) . A t t h e e n d o f t h ei me r s l o n p e r i o d , t h e s p e c i me n s s h a l l b e r emo v e d f r om t h e h o t o i l a n dl me d l a t e l y I nwn e r s e dI n f r e s h o t l No . 1 a t s t a n d a r d c o n d i t i o n s f o r 3 0 ● 5

m i n u t e s . T e s t s p e c f me n s s h a l l t h e n b e d i p p e d r a p i d l y i n a c e t o n e o r a l c o h o l ,b l o t t e d l i g h t l y , a n d t e s t e d w l t h t n 3m f n u t e s .

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F I I L - R - 6 8 5 5 E

4 . 6 . 3 . 4 . 3 F u e l ! - I o n ( C l a s s 1 v o l _ n a e o n l y l . C l a s s 1 s p e c i me n ss h a l l b e s u c c e s s i v e l y e x p o s e d t oc o n d ! t i o n l n g t o d e t e r m i n e c h a n g e

Ph a s e A I mme r s i o n I n F u e lc o n d ! t l o n s .

Ph a s e B I mme r s ~ o n i n F u e lc o n d i t i o n s .

Ph a s e C D r i e d a t s t a n d a r d

t h e f o l l ow~ n g p h a s e s o f f u e l I me n e r s l o nI n v o l ume :

B o f ASTM 0 4 7 1 , f o r 7 d a y s a t s t a n d a r d

A o f ASTM D4 7 1 , f o r 7 d a y s a t s t a n d a r d

c o n d i t i o n s f o r a t l e a s t 1 6 h o u r s , a n df o l l owe d b y a d r y i n g f o r 4 h o u r s I n a c i r c u l a t i n g a i r o v e na t a t emp e r a t u r e o f 1 5 8 ° A 2 ° F ( 7 0 ° * I - C ) .

E a c h s p e c i me n s h a l l b e e x p o s e d t o p h a s e s A , 6 a n d C s u c c e s s i v e l y , d e t e r m t n l n gv o l ume c h a n g e I n a c c o r d a n c e w i t h 4 . 6 . 3 . 3 a f t e r e x p o s u r e t o e a c h p h a s e . P r i o rt o d e t e r m ! n l n g v o l ume c h a n g e a f t e r p h a s e A a n d p h a s e 8 e x p o s u r e , t h e t e s ts p e c i me n s s h a l l b e r emo v e d f r om t h e I nmn e r s l o nme d i um , d f p p e d r a p i d l y ~ na c e t o n e o r a l c o h o l , b l o t t e d l l g h t l y , a n d t e s t e d w i t h i n 3 m i n u t e s . T h e p e r i o db e t we e n p h a s e s A a n d B , d u r i n g wh i c h t h e s p e c i me n s a r e n o t i nwn e r s e d ,s h a l l n o te x c e e d 3 0 m i n u t e s .

4 . 6 . 4 e r a t u r e t e s t s ( c o d b e r u l . 11 T h r e e s t r i p s 5 . 5 0 b y 0 . 2 5 b y0 . 0 7 5 i n c h e s ( 1 4 0 b y 6 . 4 b y 1 . 9 mm ) s h a l l b e u s e d f o r t h e c o l d b e n d t e s t . T h eb e n d i n g d e v i c e s h a l l c o n s i s t o f t wo p a r a l l e l j aws o f s u i t a b l e l e n g t h , 2 . 5I n c h e s ( 6 4 mm ) a p a r t , a n d d e s i g n e d t o h o l d t h r e e s p e c t me n s I n a l o o p p o s l t f o n

b e t we e n t h e j aws w i t h e a c h e n d o f t h e s p e c i me n f i r m l y f a s t e n e d t o t h e j aws a n de x t e n d i n g a t l e a s t 0 . 7 5 I n c h ( 1 9 . 1 mm ) I n t o e a c h j aw . T h e mo v i n g $ aw s h a l l b el o a d e d w i t h a d e a d l o a d o f 5 0 p o u n d s ( 2 2 . 6 8 k g ) . T h e j aws s h a l l b e s u p p o r t e d _I n g u i d e s s o t h a t t h e y ma y b e r a p i d l y c l o s e d t o 1 I n c h ( 2 5 . 4 n u n ) b y r e l e a s l n gt h e d e a d l o a d .

4 . 6 . 4 . 1 P r o c e d u r e .

4 . 6 . 4 . 1 . 1 Ws 1 . C l a s s 1 s y n t h e t i c r u b b e rc o n d i t i o n e d a s f o l l ows :

So a k I n F u e l B o f ASTM 0 4 7 1 f o r 3 h o u r s1 5 8 ” * 2 ° F ( 7 0 ° * I “ C ) . So a k t n F u e l Ah o u r s u n d e r r e f l u x a t 1 5 8 ” * 2 - F ( 7 0 ” t

s p e c t me n s s h a l l f ~ r s t b e

u n d e r r e f l u x a to f ASTM 0 4 7 1 f o r 31●c) . T r a n s f e r o f

s p e c ~me n s f r om F u e l 8 t o F u e l A s h a l l b e ma d e w t t h l n ap e r i o d o f 1 h o u r . A f t e r r emo v a l f r om F u e l A , s p e c i a e n ss h a l l b e d r i e d a t s t a n d a r d c o n d t t f o n s o n a w i r e s c r e e nf o r n o t l e s s t h a n 1 6 h o u r s n o r mo r e t h a n 2 4 h o u r s .

A f t e r t h e a b o v e c o n d l t l o n i n g ,t h e s p e c i me n ss h a l l b e mo u n t e d i n t h ep r e c o n d i t i o n e da p p a r a t u s , I mn e r s e d I n p r e c o n d i t i o n e d F u e l Ao f ASTM D4 7 1 , a n de x p o s e d t o a t e mp e r a t u r e o f - 6 7 ° * 2 * F ( - 5 5 ” * I *C ) . A f t e r 3 0 0 i I S n l n u t e $e x p o s u r e , t h e s p e c i me n s s h a l l b e f l e x e d wh i l e s t t l l I me r s e d a n d I n t h e c o l dc h amb e r , a n d e x am i n e d f o r e v i d e n c e o f c r a c k i n g .

4 . 6 . 4 . ? . 2 ~ . C l a s s e s 2 , 3 , 4 a n d 5 s y n t h e t f c r u b b e rs p e c i me n s s h a l l b e mo u n t e d i n t h e p r e c o n d i t i o n e d a p p a r a t u s , e x p o s e d t o at emp e r a t u r e o f - 6 7 ” ● 2 ° F ( - 5 5 ” i 1 *C ) f o r 3 0 0 * 1 5 m i n u t e s a n d f l e x e d wh i l e _s t i l l i n t h e c o l d c h amb e r , a n d e x am i n e d f o r e v i d e n c e o f c r a c k i n g .

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4 . 7 @ l o r . I f ma t e r l a l c o v e r e d b y t h ~ s s p e c i f i c a t i o n t s r e q u i r e d t o b e o fa s p e c i f t e d c o l o r , q u a l i t y a s s u r a n c e p r o v l s ~ o n s f o r e x am l n a t ~ o n o f c o l o r s h a l lb e \ n c l u d e d i n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 3 . 7 a n d 6 . 2 ) .

5 . PACKAG I NG

5 . 1 J h - e s e r v a l j . g u l. P r e s e r v a t i o n s h a l l b e L e v e l A o r Co n n n e r c ~ a l , a ss p e c

5

5sma1

f l e d ( s e e 6 . 2 ) .

1 . 1 E v e l A .

1 . 1 . 1 Mo l d e d s h a p e s i r i d sma 1 1 p i e c e s . I n d i v i d u a l mo l d e d s h a p e s a n do i e c e s { s e e 3 . 9 . 3 ) s h a l l b e p r e s e r v e d I n I n d i v i d u a l e n v e l o p e s ( o n e p a r t

p e r e n v e l o p e ) i n a c c o r d a n c e w i t h M I L - P - 4 8 6 1 a s s p e c l f l e d b y t h e p r o c u r i n ga c t l v l t y ( s e e 6 . 2 ) .

5 . 1 . 1 . 2 ~ . p r e s e r v a t i o n ( i n t e r i o rp a c k a g i n g ) o f s h e e t s , s t r i p s , a n d e x t r u d e d s h a p e s i s n o t r e q u i r e d .

5 . 1 . 2 r c i a 1 . S y n t h e t i c r u b b e r f o r ms s h a l l b e p r e s e r v e d i n a c c o r d a n c ew i t h t h e a p p l i c a b l e r e q u i r eme n t s o f ASTM D3 9 5 1 .

5 . 2 mc k l n g . P a c k i n g s h a l l b e L e v e l A , B , C , o r Comme r c i a l , a s s p e c i f i e d( s e e 6 . 2 a n d 6 . 4 ) . Sh i p p i n g c o n t a i n e r s s h a l l c o n t a i n s y n t h e t i c r u b b e r o f t h es ame c l a s s , t y p e ( wh e n a p p l i c a b l e ) , g r a d e , f o r m , a n d s i z e , a n d s h a l l b ed e s i g n e d t o e n c l o s e t h e c o n t e n t s I n a s n u g t i g h t - f ! t t l n g ma n n e r . T h e g r o s swe i g h t o f t h e s h i p p i n g c o n t a i n e r s h a l l n o t e x c e e d 2 0 0 p o u n d s ( 9 0 . 7 k g ) .

5 . 2 . 1 J # v e l ~ . S y n t h e t i c r u b b e r f o r ms s h a l l b e p a c k e d f o r s h t pme n t , a ss p e c l f l e d b e l ow f o r t h e v a r i o u s i t ems c o v e r e d b y t h i s s p e c i f i c a t i o n ( s e e1 . 2 . 3 ) , i n c l e a t e d b o x e s c o n f o r m i n g t o PPP - B - 6 0 1 , Ov e r s e a s T y p e . C l oW r es h a l l b e I n a c c o r d a n c e w i t h t h e a p p e n d i x o f t h e a p p l i c a b l e s p e c l f l c a t l o n .

a . F l a t s h e e t s : P a p e r o r t a l c d u s t i n g p owd e r s h a l l b e u s e db e t we e n t h e s h e e t s e x t e n d i n g o v e r t ! h ef u l l ●r e a @ f c o n t a c tb e t we e n t h e s h e e t s . T h e I n s i d e h e i g h t o f t h e c o n t a i n e r s h a l ln o t e x c e e d 1 0 t n c h e s ( 2 5 4 am ) . Uh e n s p e c i f i e d b y t h e p r o c u r i n ga c t i v i t y , a sma l l q u a n t i t y o f s h e e t s h a v i n g a ma x i mum t h i c k n e s sn o t e x c e e d i n g 2 . 5 i n c h e s ( 6 4 cm ) ma y b e b a l e d . T h e s h e e t s s h a l lb e p a c k e d s o t h e y w i l l n o t b e c ome d e f o r me d o r c omp r e s s e d i ns h i pme n t o r e x t e n d e d s t o r a g e .

b . Ro l l s h e e t s : P a p e r , p l a s t l c f l l m , o r t a l c d u s t i n g p owd e rs h a l l b e u s e d t o c o v e r t h e f u l l a r e a o f c o n t a c t o f t h er u b b e r s h e e t . E a c h r o l l s h a l l c o n t a i n t h e n umb e r o f f e e t( me t e r s ) s p e c i f ~ e d , wo u n d o n c o r e s wh i c h w i l l p r o v i d er i g i d s u p p o r t a n d wh i c h w I 1 l n o t d i s t o r t o r c h a n g e s h a p e d u r i n gh a n d l i n g o r s h i pme n t . On e r o l l o f r u b b e r s h a l l b e p a c k e d i n t h es h i p p i n gc o n t a i n e r . E a c h r o l l s h a l l b e w r a p p e d I n h e a v y k r a f tp a p e r o r p l a s t l c f i l m a n d s e a l e d w i t h p a p e r o r t a p e b e f o r ep a c k i n g i n t h e s h i p p i n g c o n t a i n e r .

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M I L - R - 6 8 5 5 E

c . S t r i p : P a p e r , p l a s t i c f i l m , o r t a l c d u s t i n g p owd e r s h a l lb e u s e d t o c o v e r t h e f u l l a r e a o f c o n t a c t o f t h e r u b b e rs t r i p . On e r o l l o f r u b b e r s t r t p s h a l l b e p a c k e d I n t h es h i p p i n g c o n t a i n e r . E a c h r o l l s h a l l c o n t a i n t h e n umb e r o ff e e t ( me t e r s ) s p e c l f l e d , wo u n d o n c o r e s wh i c h w i l l p r o v i d e r i g t d -s u p p o r t a n d wh i c h w i l l n o t d i s t o r t o r c h a n g e s h a p e d u r i n gh a n d l i n g o r s h i pme n t . E a c h r o l l s h a l l b e w r a p p e d i n h e a v y k r a f tp a p e r o r p l a s t ! c f i l m a n d s e a l e d w i t h p a p e r o r t a p e b e f o r ep a c k i n g i n t h e s h i p p i n g c o n t a i n e r .

d. E x t r u d e d s h a p e s : T a l c d u s t i n g p owd e r s h a l l b e u s e d t o c o v e rt h e e n t i r e o u t s i d e a r e a o f t h e e x t r u d e d s h a p e s . E x t r u s i cms ,1 4 f e e t ( 4 . 3m ) o r l e s s I n l e n g t h , s h a l l b e p a c k e d I n s t r a f g h tl e n g t h s . L e n g t h s o f e x t r u s i o n s g r e a t e r t h a n 1 4 f e e t ( 4 . 3m )

ma y b e c o i l e d , p r o v i d e d t h e I n s i d e d i ame t e r o f t h e CO I I i sl a r g e e n o u g h t o p r e c l u d e t h e p o s s i b i l i t y o f p e r ma n e n t d e f o r ma t i o n

o r s e t d u r i n g s h i pme n t a n d e x t e n d e d s t o r a g e . E x c e p t f o r t u b ~ n g .e a c h s h a p e s h a l l b e w r a p p e d f u l l l e n g t h I n p a p e r o r p l a s t i c f i l ms l e e v i n g b e f o r e p l a c i n g i n t h e s h i p p i n g c o n t a i n e r . T h e t u b es e c t i o n o f c o i l e d e x t r u s i o n s s h a l l a l wa y s b e o n t h e i n s i d e t op r e v e n t p e r ma n e n t d i s t o r t i o n d u e t o s t r e s s o f c o i l ~ n g .

e . Mo l d e d s h a p e s a n d sma l l p i e c e s : Mo l d e d s h a p e s a n d sma l lp i e c e s p r e s e r v e d i n a c c o r d a n c e w i t h 5 . 1 . 1 . 1 , s h a l l b e p a c k e d i na c c o r d a n c e w i t h M I L - P - 4 8 6 1 .

5 . 2 . 2 l e v e l ~ . S y n t h e t i c r u b b e r f o r ms s h a l l b e p a c k e d f o r s h i pme n t a ss p e c i f i e d I n 5 . 2 . l a t h r o u g h 5 . 2 . l e , I n f i b e r b o a r d b o x e s c o n f o r m i n g t oPPP - 8 - 6 3 6 , we a t h e r r e s t s t a n tC l a s s , o r PPP - 1 1 - 6 4 0 ,C l a s s 2 . Mo l d e d s h a p e s a n dsma l l p i e c e s a s s p e c l f l e d i n 5 . 2 . l ( e ) , s h a l l b e p a c k e d f o r s h i pme n t t n -

a c c o r d a n c e w f t h N I L - P - 4 8 6 1 . C l o s u r e a n d s e a l l n g s h a l l b e i n a c c o r d a n c e w i t ht h e a p p e n d i x o f t h e a p p l i c a b l e s p e c i f i c a t i o n .

5 . 2 . 3 K v e l C . S y n t h e t i c r u b b e r f o r ms s h a l l b e p a c k e d I n a c c o r d a n c e w i t ht h e a p p l i c a b l e r e q u i r eme n t s o f M I L - STD - 2 0 7 3 - 1 .

5 . 2 . 4 ~ . S y n t h e t i c r u b b e r f o r ms s h a l l b e p a c k e d I n a c c o r d a n c ew i t h t h e a p p l i c a b l e r e q u i r eme n t s o f ASTM 0 3 9 5 1 .

5 . 3 . 1 s e l f l l f e ~ . Sh e l f l l f e ma r k i n g s a n d ma r k i n g o f I n t e r i o rp a c k a g e s a n d s h l p p ~ n g c o n t a i n e r s s h a l l b e ma r k e d I n a c c o r d a n c e w i t hM I L - STD - 1 2 9 0 r ASTN D3 9 5 1 a s a p p l ~ c a b l e a n d t h e r e q u i r eme n t s h e r e f n . T h e c u r ed a t e a n d “ u s e b y n d a t e s h a l l b e i n d i c a t e d b y q u a r t e r a n d y e a r ( f o r e x amp l e :3 ( J 8 6 i n d l c a t e s t h e t h i r d q u a r t e r o f c a l e n d a r y e a r 1 9 8 6 ) ( s e e 3 . 8 , 3 . 9 , a n d6 . 2 ) .

5 . 3 . 2 ~ r v - . T h e f o l l ow~ n g p r e c a u t i o n a r y ma r k i n g s h a l l b ei n c l u d e d o n e a c h s h l p p f n g c o n t a i n e r .

STORE I NA COOL DRY PLACE

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5 . 4

M I L - R - 6 8 5 5 E

P a l l e t f z a t i o n . Un i t i z e d l o a d s , c omme n s u r a t e w i t h t h e l e v e l o f p a c k i n gs p e c i f i e d I n t h e c o n t r a c t o r p u r c h a s e o r d e r ( s e e 6 . 2 ) , s h a l l b e p a l l e t l z e d I na c c o r d a n c e w i t h M I L - STD - 1 4 7 . P a l l e t l z e d l o a d s s h a l l b e u n i f o r m ~ n s i z e a n dq u a n t i t i e s t o t h e g r e a t e s t e x t e n t p o s s i b l e . If t h e c o n t a ! n e r I s o f a s i z ewh i c h d o e s n o t c o n f o r m t o a n y o f t h e p a l l e t p a t t e r n s s p e c i f i e d I n M I L - STD - 1 4 7 ,t h e p a l l e t p a t t e r n u s e d s h a l l f i r s t b e a p p r o v e d b y t h e p r o c u r i n g a c t i v i t y .

6 . NOT ES( T h i s s e c t i o n c o n t a i n s I n f o r ma t i o n o f a g e n e r a l o r e x p l a n a t o r y n a t u r e

t h a t ma y b e h e l p f u l , b u t I s n o t ma n d a t o r y )

6 . 1 I n t e n d e d u s e . T h e ma t e r i a l c o v e r e d b y t h i s s p e c i f i c a t i o n i s i n t e n d e df o r u s e wh e r e s y n t h e t i c r u b b e r I s r e q u i r e d f o r a s p e c i f i c a p p l i c a t i o n , s u c ha s :

6 . 1 . 1 C l a s s 1 . C l a s s 1 ma t e r i a l i s i n t e n d e d f o r u s e wh e r e r e s i s t a n c e t oa r oma t t c , a l k y l a t e o r a v t a t i o n f u e l , a n d p e t r o l e um b a s e l u b r i c a n t s i s r e q u i r e d .

6 . 1 . 2 C J a s s z . C l a s s 2 ma t e r i a l I s i n t e n d e d f o r u s e wh e r e r e s i s t a n c e t op e t r o l e um b a s e l u b r i c a n t s a n d e x p o s u r e t o t h e e l eme n t s i s r e q u i r e d .

6 . 1 . 2 . 1 ~ p e A . T y p e A I s I n t e n d e d f o r u s e wh e r e h i g h c o n c e n t r a t i o n s o fo z o n e e x i s t i n t h e a t mo s p h e r e , p a r t i c u l a r l y a l o n g t h e e a s t a n d we s t c o a s t s o ft h e Un i t e d S t a t e s . T y p e B ! s I n t e n d e d f o r g e n e r a l u s e .

6 . 1 . 3 L l a s s s . C l a s s 3 ma t e r i a l I s I n t e n d e d f o r g e n e r a l u s e wh e r er e s i s t a n c e t o o ! l a n d f u e l a n d t h e e l eme n t s I s n o t r e q u i r e d .

6 . 1 . 4 C l a s s e s 4 a n d 5 . C l a s s e s 4 a n d 5 ma t e r i a l a r e i n t e n d e d f o r g e n e r a lu s e i n c o n t a c t w i t h a c r y l l c p l a s t i c s .

6 . 1 . 4 . 1 c l a s s 4 . C l a s s 4ma t e r l a l I s i n t e n d e d f o r u s e i n a p p l i c a t i o n sr e q u t r l n g ma x i mum r e s i s t a n c e t o t h e e l eme n t s a n d p e t r o l e um b a s e o i l , a n dr e q u i r e s t h e s ame u s a g e u n d e r T y p e A o r T y p e B a s i n d i c a t e d I n 6 . 1 . 2 . 1 .

6 . 1 . 4 . 2 WLS . . $ J . C l a s s 5 ma t e r i a l i s I n t e n d e d f o r u s e wh e r e l owt emp e r a t u r e f l e x i b i l i t y i s r e q u i r e d ( - 6 7 * A 2 ° F ( - 5 5 ” * 1 ° C ) ) . C l a s s 5 I s n o tr e c omme n d e d f o r u s e w i t h p e t r o l e um b a s e 0 1 1 , o r wh e r e s u n l l g h t a n d o z o n er e s i s t a n c e i s r e q u i r e d .

6 . 1 . 5 E l a s t ome r s k n own t o c omp l y w i t h t h e s p e c i f i c c l a s s e s o f t h i ss p e c i f i c a t i o n a r e a s f o l l ows :

C l a s s 1 N l t r i l e - Bu t a d i e n eC l a s s 2 Po l y c h l o r o p r e n eC l a s s 3 S t y r e n e - b u t a d l e n eC l a s s 4 Po l y c h l o r o p r e n eC l a s s 5 S t y r e n e - b u t a d t e n e

Po l y u r e t h a n e r u b b e r s h a l l n o t b e s u p p l i e d t o t h i s s p e c i f i c a t i o n d u e t o i t sl a c k o f h y d r o l y t i c s t a b i l i t y a n d t h e r e l e a s e o f t o x i c f ume s wh e n b u r n e d .

6 . 1 . 6 ~ . use O f t h i s s p e c i f i c a t i o n f o rU . S . Army Electronics Gxnand is restricted to Class 4and Class 5.

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M I L - R - 6 8 5 5 E

6 . 2 ~ . A c q u i s l t l o n d o c ume n t s s h o u l d s p e c i f y t h ef o l l ow f n g :

a . T i t l e , n umb e r , a n d d a t e o f t h i s s p e c i f i c a t i o n a n d a p p l i c a b l es p e c l f l c a t l o n s h e e t .

b . M l l l t a r y p a r t n umb e r ( I f a n y ) , C l a s s , G r a d e , F o r m , d i me n s i o n s ,amo u n t r e q u i r e d ( s e e 1 . 2 , 3 . 4 , a n d 6 . 2 . 1 ) .

c . T y p e f o r o z o n e r e s i s t a n c e r e q u i r e d f o r C l a s s e s 2 a n d 4( s e e 3 . 6 . 1 a n d 4 . 6 . 1 . 4 ) .

d . I s s u e o f t h e DOD I SS t o b e c i t e d i n t h e s o l i c i t a t i o n , a n d i fr e q u i r e d , t h e s p e c i f i c I s s u e o f l n d i v ~ d u a l d o c ume n t s r e f e r e n c e d( s e e 2 . 1 . l a n d 2 . 2 )

e . De t a i l d r aw i n g s a n d a d d i t i o n a l s p e c l f f c a t l o n s a n d t o l e r a n c e s ,i f a n y ( s e e 3 . 4 a n d 3 . 5 ) , I n c l u d i n g d e t a i l s of s u r f a c e f i n i s h ( I f

d i f f e r e n t t h e n t h a t I n 3 . 5 ) a n d r u b b e r r e i n f o r c eme n t , i f a n y ( s e e1 . 1 ) .

f . Re q u i r eme n t s , i f a n y , f o r c o l o r o f ma t e r i a l a n d a p p l i c a b l e q u a l l t ya s s u r a n c e p r o v i s i o n s ( s e e 3 . 7 a n d 4.7).

9. Sh e l f l l f e d e s i g n a t i o n a n d ma r k i n g r e q u i r eme n t s t o d e s i g n a t e t h e“ u s e b y ” d a t e ( s e e 3 . 8 a n d 5 . 3 . 1 ) .

h . Ha r k f n g f r e q u e n c y r e q u i r eme n t s , f f o t h e r t h a n t h a t s p e c i f i e d I n3 . 9 . 1 t h r o u g h 3 . 9 . 3 , a s a p p l i c a b l e .

1 . De t a i l s f o r f i r s t a r t i c l e t e s t i n g ( s e e 4 . 3 , 4 . 3 . 2 , a n d 6 . 6 ) .j . Qu a l l t y c o n f o r ma n c e a c c e p t a n c e c r i t e r i a f o r v i s u a l ( s e e 4 . 4 . 2 . 1 ) ,

d i me n s i o n a l ( s e e 4 . 4 . 2 . 2 ) , a n d p a c k a g i n g i n s p e c t i o n ( s e e 4 . 4 . 2 . 3 ) .k . If t e s t i n g f o r o z o n e r e s i s t a n c e a n d / o r c r a z i n g i s t o b e p e r f o r me d

u n d e r q u a l i t y c o n f o r ma n c e i n s p e c t i o n ( s e e T a b l e X ) .1 . L e v e l s o f p r e s e r v a t ~ o n a n d p a c k i n g , p a l l e t l z a t i o n r e q u i r e d

u n i t q u a n t i t i e s ( s e e S e c t I o n 5 ) .

6 . 2 . 1 P a r t o I dU l n a n umb e r (PIN) P a r t n umb e r s s h o u l d b e a s s ’i n a c c o r d a n c e w l [ h a p p l i c a b l e s p e c i f l c a t l o ~ s h e e t s t o i d e n t i f y i t emsf a b r i c a t e d f r om s y n t h e t i c r u b b e r i n a c c o r d a n c e w i t h t h f s s p e c i f i c a t i o n .

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Wh e na n i t em f u r n i s h e d - u n d e r t h i s s p e c i f i c a t i o n I s n o t c o v e r e d b y a s p e c i f i c a t i o ns h e e t , t h e ma n u f a c t u r e r s p a r t n umb e r s h o u l d I d e n t i f y t h e I t em . M i l i t a r y p a r tn umb e r s s h o u l d b e c o d e d i n a c c o r d a n c e w i t h t h e f o l l ow l n g e x amp l e :

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~ l x d l g l t d a s h n umb e r

11 d e s c r i b e s t h e i t em I ncomprising a code which

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b e d e v e l o p e d f r om s p e c l f ! c a t l o n s h e e t r e q u i r eme n t s .

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~ p e c l f l c a t ! o n s h e e t n umb e r . “

~ e n o t e s b a s i c s p e c i f ! c a t l o n U I L - R - 6 8 5 5

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M I L - R - 6 8 5 5 E

6 . 3 Co n s d e r a t i o n o f d a t a r e . g u i eme n ~1 r T h e f o l l ow l n g d a t a r e q u i r eme n t ss h o u l d b e c o n s i d e r e d wh e n t h i s s p e c i f i c a t i o n I s a p p l i e d o n a c o n t r a c t . Thea p p l i c a b l e Da t a I t em De s c r i p t i o n ( D I D ) s h o u l d b e r e v i ewe d I n c o n j u n c t i o n w i t ht h e s p e c i f i c a c q u l s l t l o n t o e n s u r e t h a t o n l y e s s e n t i a l d a t a a r er e q u e s t e d / p r o v i d e d a n d t h a t t h e 0 1 0 i s t a i l o r e d t o r e f l e c t t h e r e q u i r eme n t s o ft h e s p e c l f l c a c q u i s i t i o n . T o e n s u r e c o r r e c t c o n t r a c t u a l a p p l i c a t i o n o f t h e

d a t a r e q u i r eme n t s , a Co n t r a c t Da t a Re q u i r eme n t s L i s t ( DD F o r m 1 4 2 3 ) mu s t b ep r e p a r e d t o o b t a i n t h e d a t a , e x c e p t wh e r e DOD F AR Su p p l eme n t 2 7 - 4 . 7 5 - 1 e x emp t st h e r e q u i r eme n t f o r a DD F o r m 1 4 2 3 .

Su g g e s t e dJ l e f e r e n c eP a r ~ QID Numb e _r DID T i t l e T a i l o r i n g

4 . 3 , 1 . 1 D I - NDT I - 8 0 8 0 9A T EST / I NSPECT I ON REPORTS - - -4 . 3 . 3 I I I t 1 0 . 2 . 7 . 2

T h e a b o v e D I D wa s c l e a r e d a s o f t h e d a t e o f t h i s s p e c i f i c a t i o n . T h e c u r r e n tI s s u e o f DOD 5 0 1O . 1 2 - L , A c q u l s l t l o n Ma n a g eme n t S y s t ems a n d Da t a Re q u i r eme n t s

Co n t r o l L i s t ( AMSDL ) , mu s t b e r e s e a r c h e d t o e n s u r e t h a t o n l y c u r r e n t , c l e a r e dD I D ’ s a r e c ~ t e d o n t h e DD F o r m 1 4 2 3 ,

6 . 4 Ad h e s i v e l y bo n d l n a r u b b e r c omo n e n t s . D i f f i c u l t y h a s b e e n r e p o r t e dwh e n a d h e s i v e l y b o n d i n g r u b b e r s h e e t s d u e t o s u r f a c e c o n t am i n a t i o n . Po s s i b l es o u r c e s o f c o n t am i n a t i o n I n c l u d e t h e p a p e r o r d u s t i n g p owd e r u s e d t o s e p a r a t et h e s h e e t s a n d l a t e x g l o v e s u s e d t o h a n d l e t h e s h e e t s . In p r e p a r i n g d o c ume n t st o a c q u i r e ma t e r i a l wh i c h w i l l b e b o n d e d , a p p r o p r i a t e me a s u r e s t o a v o i d t h i sp r o b l em s h o u l d b e c o n s i d e r e d . Su c h me a s u r e s wo u l d I n c l u d e s u p p l eme n t a ls p e c i f i c a t i o n o f me t h o d s , ma t e r i a l s , a n d p r o t e c t i v e g l o v e s f o r u s e I np r o d u c t i o n , h a n d l l n g , a n d p a c k a g i n g , a s we l l a s I n s p e c t I o n s a n d t e s t me t h o d st o e n s u r e t h a t b o n d i n g s u r f a c e s h a v e n o t b e e n c o n t am i n a t e d .

6 . 5 Ha z a r d s . T h i s s p e c i f i c a t i o n ma y i n v o l v e h a z a r d o u s ma t e r i a l s ,o p e r a t i o n s , a n d e q u i pme n t . T h i s s p e c i f i c a t i o n d o e s n o t p u r p o r t t o a d d r e s s t h es a f e t y p r o b l ems a s s o c i a t e d w i t h I t s u s e . I t I s t h e r e s p o n s l b ! l l t y o f t h ec o n t r a c t o r o r t e s t a c t i v i t y t o e s t a b l i s h a p p r o p r i a t e s a f e t y a n d h e a l t hp r a c t i c e s , a n d t o c o n s u l t a n d d e t e r m i n e t h e a p p l i c a b i l i t y o f r e g u l a t o r yl i m i t a t i o n s wh i c h ma y a p p l y .

6 . 6 J t r s t a r t l c l ~ . T h e c o n t r a c t i n g o f f i c e r s h o u l d p r o v i d e s p e c ~ f i cg u i d a n c e t o o f f e r o r s wh e t h e r t h e f i r s t a r t i c l e s amp l e s s h o u l d b e ap r e p r o d u c t i o n I t em , a f l r s t p r o d u c t i o n I t em , a s amp l e s e l e c t e d f r om t h e f i r s tp r o d u c t i o n I t ems , o r a s t a n d a r d p r o d u c t i o n i t em f r om t h e c o n t r a c t o r s i n v e n t o r y( s e e 3 . 1 a n d 4 . 3 ) . T h e c o n t r a c t t n g o f f l c e r s h o u l d a l s o I n c l u d e s p e c l f l ci n s t r u c t i o n s I n a c q u i s i t i o n d o c ume n t s r e g a r d i n g a r r a n g eme n t s f o r t e s t i n g ,

a p p r o v a l o f f i r s t a r t i c l e t e s t r e s u l t s , a n d d i s p o s i t i o n o f f f r s t a r t i c l e s .I n v l t a t l o n s f o r b t d s s h o u l d p r o v i d e t h a t t h e Go v e r nme n t r e s e r v e s t h e r i g h t t o

wa t v e r e q u i r eme n t s f o r f i r s t a r t i c l e i n s p e c t i o n t o t h o s e b i d d e r s o f f e r i n g s u c hp r o d u c t s , wh o w i s h to r e l y o n s u c h p r o d u c t i o n o r t e s t , mu s t f u r n i s h e v i d e n c ew i t h t h e b l d t h a t p r i o r Go v e r nme n t a p p r o v a l i s p r e s e n t l y a p p r o p r i a t e f o r t h ep e n d i n g c o n t r a c t . B i d d e r s s h o u l d n o t s u bm i t a l t e r n a t e b i d s u n l e s s s p e c i f i c a l l yr e q u e s t e d t o d o s o I n t h e s o l l c ! t a t l o n .

2 3

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M I L - R - 6 8 5 5 E

6 . 7 ~ c e c r i t e r i a . T h e q u a l l t y c o n f o r ma n c e a c c e p t a n c e c r l t e r l a f o rv i s u a l , d i me n s i o n a l , a n d p a c k a g i n g I n s p e c t I o n s u s e d I n p r e v t o u s r e v i s t o n s o ft h i s s p e c l f l c a t l o n a r e a s s p e c l f l e d I n T a b l e X I .

TABL E X I . A c cwc e c i t e r i a t n D r e ~ o u s r e ~ l s ~mr v .

I A c c e p t a n c e C r i t e r i a i nI n s p e c t ~ o n P a r a g r a p h P r e v f o u s Re v t s l o n s

#4 . 4 . 2 . 1 . 1 AQL o f 0 . 6 5%

V i s u a l 4 . 4 . 2 . 1 . 2 AQL o f 1 . 0%4 . 4 . 2 . 1 . 2 . 1 A ( 3 L o f 2 . 5%

D l me n s l o n a l 4 . 4 . 2 . 2 . 1 AQL o f 0 . 6 5%4 . 4 . 2 . 2 . 7 o f 1 , 5%

P a c k a g i n g 4 . 4 . 2 . 3 AQL Of 2 . 5%

6 . 8 Sub.lxt (kw wo r d ) l l s t inq

E l a s t ome r sRu b b e rS y n t h e t i c Ru b b e r

6 . 9 ~ . A s t e r i s k s a r e n o t u s e d I n t h i s r e v l s l o nt o I d e n t i f y c h a n g e s w i t h r e s p e c t t o t h e p r e v i o u s i s s u e d u e t o t h ee x t e n s i v e n e s s o f t h e c h a n g e s . —

Custodians:A r my - MRNa v y - ASA i r F o r c e - 1 1

Re v 3 ew a c t l v l t t e s :A r my - AR , AT , AV , CR , ER , M INa v y - 0S , SHA l r F o r c e - 8 2 , 9 9DLA - GS , I S , CS

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Us e r a c t l v l t l e s :A r my - CENa v y - YD

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ALL DIMENSII)NS ARE IN INCHES.

TOLERANCES!PLASTIC BEAMS +/- 0.001CANTILEVER +/- 0.030

1/4

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STANDARDIZATIO N D O CUMENT IMPRO VEMENT PROPOSAL

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wa i v ea n yportion of the referenced document(s) or to amend contractual requirements.

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