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ARMED SERVICES TECHNICAL INFOUM MWARLINGTON HALL STMAIONARLINGTO 12, VIRGINIA

UNCLASSIFIED

NOTICE: When government or other dravings, speed-fications or other data are used for any purposother than in connection vith a definitely relatedgovernment procurement operation, the U. S.Government thereby incurs no responsibility, nor nyobligation v.atsoever; and the fact that the Govern-ment may have formlated, furnished, or in any veysupplied the said dravings, specifications, or otherdata is not to be regarded by implication or other-vise as in any manner licensing the holder or anyother person or corporation, or conveying any rl&btaor permaosion to manufacture, use or sell anypatented invention that may in any vay be relAtedthereto.

00

TEz=-N:CAL REPRT FRL-TR-44

EFFECT OF FUEL AND OXIDANT PARTICLE SIZE

ON THE PERFORMANCE CHARACTERISTICS OF

S60/40 POTASSIUM PERCHLORATE/ALUMINUM

FLASH COMfPOSITION

SEYMGOUR M. KAYE

JOEL HARRIS

NOVEMBER 1961

• ELTMM( RESEARCH LABORATORIES, rICATIINY ARSENAL '

= IOVER. K I.

015 5S)OIIusS

CC"'. or YhK ARMY PRwOJICl U104-01,-

-m

EFFECT OF FUEL AND OXIDANT PARTICLE SIZEON THE PERFORMANCE CHARACTERISTICS

OF 60/40 POTASSIUM PERCHLORATE/ALUMINUM FLASH COMPOSITION

by

Seymour A. Kay*Joel Harris

November 1961

Feitmon Research7 LaboratoriesPicatinny Arsenal

Dover, N. J.

Technical Report FRL.TR.44 Aplnml

OMS 5530.11.558A & SAGE

Dept of the Army Project 504.01027 Llb..utv

TABL I OF CONTENTS

Object I

Summary I

Introduction 1

Results 3

Discussion of Results

Conclusions 5

Experimental Procedures 5

Tapped Densities 5Blending and Loading 6Testing 6Materials 6

References 7

Distribution List 26

Tables

I Particle size characteristics of fine, medium, and coarsealuminum and potassium perchlorate fractions 8

2 Effect of varying ingredient particle size on lightcharacteristics of (0/40 potassium perchlorate/aluminum composition 9

3 Individual test values for light characteristics or 60/40potassium perchlorate/aluminum compositions 10

4 Tapped density of aluminum and potassium perthloratefract ions 13

5 Tapped density of 60/40 potassium perchlorate/aluminumcompositions containing specified particle size fractions 14

6 Pyrotechnics Laboratoty thermochemical calculation sheet 1'

7 Pyrotechnics Laboratory thermochemickl calculation sheet 16

Page

Figures

I Effect of particle size of potassium perchlorate on time to peaklight of 60/40 potassium perchlorate/aluminum compositions(average aluminum particle size: 5.0 microns) 17

2 Effect of particle size of potassium perchlorate on peak light

intensity of 60/40 potassium p-.:chlorate/aluminum compo-sitions (average aluminum particle size: 5.0 microns) 18

3 Effect of particle size of potassium perchlorate on integrallight ('/, max) of 60/40 potassium perchlorate/aluminumcompositions (average aluminum particle.size: 5.0 microns) 19

4 Effect of particle size of potassium perchlorate on duration oflight emission ('/,. max) of 60/40 potassium perchlorate/aluminum compositions (average aluminum particle size-5.0 microns) 2C.

.5 Effect of particle size of potassium perchlorate on luminousefficiency ('/, max) of 60/40 potassium perchlorate/aluminum composition- (average aluminum particle size:5.0 microns) 21

6 Charge Case Loading Assembly 22

7 Time-intensity curves at sea level ani simulated high

altitude (60/40 potassium perchlorate/aluminum blends -4 1st group) 23

8 Time-intensity curves at sea level and simulated highaltitude (60/40 potassium perchlorate/aluminum blends -2nd group) 24

9 Time-intensity curves at sea level and simulated highaltitude (60/40 potassium perchlorate/aluminum blends

S3rd group) 25

.1

-!- ~ -

OBJECT It was concluded that, independentof potassium perchlorate size range, use

To determine the effect of fuel and of medium (8.4-40 micron) or coarse (24-

oxidant particle size on the performance 62 micron) aluminum degrades the light

characteristics of 60/40 potassium output to below useable levels. For the

perchlorate/aluminum flash composition. particle size ranges considered, use ofa fine aluminum fraction is necessary

SUMMARY for high order performance.

Sub-sieve potassium perchlorate and

atomized aluminum powders, commercially

classified into fine, medium and coarse

fractions, were blended in 60/40 potassium

eerchlorate/aluminum compositions,loaded into plastic Titan cartridge cases, INTRODUCTION

and tested for luminosity characteristicsat sea level and a simulated altitude It has long been known that average

of 80,000 feet. particle size and particle size range ofingredients are important parameters in

Those syste-is containing fine (0-12 determining the luminosity characteristics

micron), medium (0-23 micron), and of pyrotechnic flash compositions. Un-

coarse (6-85 micron) potassium perchlorate fortunately, since the fuels and oxidants

together with fine aluminum (0- 17 micron) normally used in such compositions are

were the only systems which emitted essentially in the sub-sieve range, and

enough light for pyrotechnic applications, since until quite recently no adequate

Maintaining t!,e aluminum particle size methods were available for classifying

constant (fine fraction) and decreasing these materials into narrow particle size

the oxidant particle size increased ef- ranges, no definitive study of these

ficiency (candleseconds/gram) at both parimeters was possible.

sea level and 80,000 feet. In general,the peak and integral light varied simi- Among the methods evaluated for

larly at high altitude. At sea level, how- separating sub-.ieve aluminum and

ever, the composition with the coarse potassium perchlorate into narrow particle

oxidant fraction produced the highest size ranges were the ilaultain Infrasizer

peak and integral light. This finding was (Ref 1), the Bahco Centrifugal Elu•tiatorl,

attributed to the greater tapped density the Majac Model L Air Classifier' and the

of the coarse oxidant fraction, resulting IH. W. Dietert Co., Detroit, Michigsa.

in substantially greater sample weight PMjac, Inc, Sharpsburg, Pittsburgh, Peacsyl-in the Titan cartridge. vaia.

K

Buckbee Mears ,!icromesh Sieves'. While vane assembly, thus changing the particle

a detailed description of these trial size range at which separation occurs.

classifications is beyond the scope of

this report, it can be generally stated The system chosen for particle size

chat although considerable enrichment evaluation was a 60/40 potassium

of fractions could be obtained utilizing perchlorate/aluminum composition, in

several of the above techniques, the common use in many pyrotechnic flash

isolation of "'clean-cut" fractions show- items. The aluminum used was spherical

ing little or no particle size overlap was atomized material, prepared and classified

not found to be possible within the sub- by the Valley Metallurgical Processing

sieve range. Company, Inc., Essex, Connecticut, using

the Alpine American Mikroplex Spiral Air

The final and most successful clas- Classifier. The potassium perchlorate

sification technique employed involved used was specification grade (PA-PD-

the use of the Alpine American Mikropl.x 254) material which was classified by

Spiral Air Classifier2. This instr,,ment the Alpine American Corporation using

separates a powder of mixed partic.e the abovc equipment.

size into two fractions above and below

a determined particle size. The separa-

tion is effected in a flat, cylindrical Luminosity tests were conducted at

classifying chamber throutgh which air sea level and at a simulated altitude of

ilows inward in a spiral path. Any particle 80,000 feet. The test

vehicle employed

cirried by this air stream has a centri- was a Titan flash cartridge fabricated

of

ufugal and a friction drag force imposed cotton-flock-filled, nitrile-rubbcr-

Supon it that essentially act in opposite modified phenolic resin (GE 12808) (Fig

directions. Thus, for particles of greater 6, p 22).

mass, the predominant force is centrifugal

and the particles tend to move tangentially

away from the air stream. For particles The particle size'characteristics of

af swall mass, the friction drag force the fine, medium, and coarse aluminum

predominates, causing a radial move- and potassium perchlorate fractions used

ment toward the center of the classifying were determined (Table 1, p 8) by an

chamber and the fine particle outlet air permeability method, the Fisher Sub

located thefe. Changes in the magnriude Sieve Sizer (Ref 2), a sedimentation

of the forces applied to the particles en- :nethod based upon Stokes' Law dealing

trained in the air stream are made by with fall in air (Ref 3), and microscopic

varying the spiral curvatvie through a examina'ion. A 90%, range figure wasused foi reporting microscopic and sedi-

'Buckbee Meats Ce.. St. Paul, Minnesota. mentation particle size ranges. This

'Alpine Americana -osp., Saxonville, Massa- was done by cutting 5% off both tails of

ChU3Ctt$, each distribution curve.

2

RESULTS DISCUSSION OF RESULTS

The particle sizc ch-aracteristics of Light emission varied as the particle

the fine, medium, and coarse aluminum size of either ingredient in the 60/40

and potassium perchlorate fractions are potassium perchiorate/aluminum compo-

detailed in Table 1 (p 8). sition was changed. An increase in theparticle size range of aluminum from 0 -

Average values for the burning param- 17.0 microns (fine, to 8.4 - 40.0 microns

e-ers obtained at sea level and at 80,000 (medium) or 24.0 - 62.0 microns (coarse)

feet in the Pyrotechnics Laboratory high caused a drastic decline in peak intensity,

altitude chamber are compiled in Table 2 integral light, and efficiency at both s,-a

(p 9), together with th average weight level and 80,000 feet, regardless of which

of composition loaded into the Titan size potassium perchlorate was used

cartridges fo, each blend. The individual (Table 2). Mdixtures containing medium

results which were used to obtain the or coarse aluminum fractions produced,

average values. in Table 2 are listed in at best, extremely poor light emission,Table 3 (p 10). and at worst, non-ignition or erratic

burning.

Table 4 (p 13) ir,:ludes tapped density

values obtained with the aluminum and Total flash duration declined a minimum

potassium perchlorate fractions used in of 50% when aluminum fractions other

this study. These values were obtained than fine were used (Table 2). W-itures

using the Pyrotechnics Laboratory Tapped containing fine aluminum fractions yielded

Density Apparatus (Ref 4). Table 5 (p longer times to peak light under sea level

14) details the zapped densities of the conditicas (more than 0.8 mil!isecond;

blended frctions evaluated in this study. Fig 1),,while all other mixtures, includingthose containing the fine aluminum

The variations of time to peak light fraction at 80,000 feet, gave shorter

(Fig 1, p 17), peak light (Fig 2, p 18), times to peak light (less than 0.8 milli-

integral light (Fig 3, p 19), duration of second).

light emission (Fig 4, p 20), and efficiency

(Fig 5, p 21) are plotted versus potassium It was apparent that only 60/40

perchlorate average particle size, keeping potassium perchlorate/aluminum compo-

the aluminum average particle size con- sitions containing a fine (0 - 17 microns)

stant at 5.0 microns. alumintm fraction produced sufficientlight for practical end-item application.

Figures 7, 8, and 9 (pp 23, 24, and The medium and coarse aluminum fractions

25) are typical time-intensity curves in combination with potassium perchloratefor the various mixtures at both sea level did not produce sufficient light to be con-

and a simulated altitude of 80,000 feet. sidered for end-item use. This is probably

'VI'/

due to the bursting of ;.he plastic Identical aierage times to peak lightcartridge case before sufficient fuel were obtained at 80,000 feet for systemscould be vaporized. The stoichiometric containing the fine fuel fraction with fine,reaction between potassium p,;.-zlorate medium, and coarse oxidant fractionsand aluminum (65.8% potassium perchlo- (Fig 1, p 17). At sea level, however, 6ierate +34.2% aluminum) furnishes suffi- identica' systems showed increasingcient heat (2538 cal/g) to vaporize the times to peak light with increasingremaining aluminum in the 60/40 compo- oxidant size.sition (Tables 6 and 7, pp 15 and 16).However, the effect of aluminum particle The phenomenon that fine/coarse fuel/size on the rate of this vaporization is oxidant fractions should produce greaternot known. It is reasonable to assume integral and peak light intensities and athat finer particles will vaporize more lower overall efficiency at sea levelrapidly than larger particles, and this than fine/fine or fine/medium fu#l/may well explain why little light is pro- oxidant mixtures was due to tht lact thatd':ced with medium and coarse aluminum a far greater weight of composit on con-fractions. The fact that some light was taining coarse oxidant could bet loadedemitted from these systems perhaps in- into the Titan cartridge case than coulddicates that some of the finer particles one containing fine or medium oxidant.were vaporized and reacted. The above Compositions containing coarse oxidantmechanism occurs before the case bursts. were found to have a far greater tapped

density than compositions containing theLuminous efficiency (candleseconds/ fine oxidant (Table 5, p 14). That the

gram) at both sea level and high altitude coarse oxidant fraction should pack moreir.creased as the particle size range of:he densely than either the fine or mediumpotassium perchlorate decreased whenthe fractions is an anomaly due probably tofine aluminum fraction was used as fuel. the observed phenomenon that bulkinessThis increase in efficiency (1/10 max) was increases with decreasing particle sizemore pronounced at 80,000 feet than at (Ref 5). This may be the result of thesea level (Fig 5, p 21). The integral buildup of static electrical charges onand peak light intensities varied sirn- the fine particles, which would effectivelyilarly to the efficiencies at 80,000 feet, prevent close packing, and encourageb,:t an opposite trend was noted under agglomeration in small loosely packedsea level conditions when the coarse clumps. This clumping effect can be seenpotassium perchloratce fraction was used with potassium perchlorate and to a(Figs 2, 3, pp 18, 19). !esser extent with aluminum below a

presently unknown particle size threshold

No explanation couldbe established for value (Table 4, p 13).variation of flash duration with potassiumperchlorate particle size at either high Thz time-intensity curves shown inaltitude or sea level (Fig 4, p 20). Figures 7, 8, and 9 (pp 23, 24, and 25)

4

- -v~.:rzr. ~- n.. ~ .,, .r. r w .. r.. WW tW

were the most representative ctrves perchlorate fraction (6- 85 micron), coin-

obtained from each group tested at 1>th positions containing this fraction in com-

sea level and the 80,000-foot simulated bination with fine aluminum yield maxi-

altitude. The areas under each curve mum peak intensity and integral light

represent the integral light emitted by values at sea level.

the system. No direct comparison of areas

can be made, however, without the various 4. It is concluded that, for the particle

calibration lactors which were used in size ranges considered, the particle size

the testing. A direct comparison of the range of the aluminum fraction is the

burning duration can be made, since the controlling factor in determining compo-

millisecond markecs on the upper hori- sition luminous efficiency. In addition, it

zontal axis used to time the durations is apparent that a fine aluminum fraction

were kept constant throughout the testing. must be included iv, any flash system

Short burning durations (lower halves of containing this fuel in order to obtain

Figs 7, 8, and 9, pp 23, 24, and 25), as sufficient light tor end-item application.

indicated by a prompt rc irn to the lower

horizontal axis, indicate poor light 5. Finally, it is apparent that the

emission. Conversely, longer burning 60/40 potassium perchlorate/aluminum

durations (upper halves of Figs 7, 8, and flash composition can be sperifically

9) indicate greater luminosity, formulated to yield optimum peak in-

tensities, time to peak intensities or

CONCLUSIONS burning durations, etc., by means of ajudicious selectidn of fuel and/or oxidant

1. Optimum luminous efficiencies are particle size ranges. However, ir must

obtained at both sea level and 80,000 be realized that no one particle size

feet with 60/40 potassium perchlorate/ range system will yield across-the-boarkd

aluminum compositions containing a fine optimum operational characteristics.

(0-17 micron) aluminum fraction. A change Thus, in order to optimize any one

to medium '(8.4- 40 micron) or coarse (24- luminosity characteristic, it is generally

62 micron) aluminum fractions degrades necessary to sacrifice periormar.,e of

the light output to below useable levels, other characterist;cs.

regardless of oxidant particle size.EXPERIMENTAL PROC? )URES

2. Maintaining the aluminum particle

size constant (0- 17 micron) and de- Topped Densities

creasing the oxidant particle size pro-.

duces a trend toward increasing luminous The apparatus used for determining

efficiencies at both sea level and high tae apparent density of the powdered

altitude. materials used in this study is composedof a motor-driven revolving cam assembly,

3. Because of a marked increase in an automatic timer, and a sample assembly

tapped density of the coarse potassium consisting of a graduated cylinder and a

cylinder holder (Ref 4). A clean, dry Testinggraduated cylinder is weighed to ±0.1gram on a trip balance. The graduated The loaded cartridges were tested in

cylinder is filled to the 50 cc level with the Pyrotechnics Laboratory high-thie sample. The cylinder ;s reweighed altitude tank, which was evacuated to a

to determine the sample weight, stoppered 20.8 mm pressure, simulating an altitude

aad taped to prevent powder from escaping, of 80,000 feet. Each cartridge was sus-and inserted into the apparatus. The ap- pended in a horizontal position at theparatus is tu'ned on for 10 minutes by center of the 15-feot-diameter portion ofmeans of an automatic timer. This causes the tank by taping them to a Y2-inch-the cam to revolve at a constant rate of diameter vertical steel rod. The end ofabout 60 revolutions per minute, raising the cartridge containing the relay assem-the graduated cylinder and simultaneously bly was faced away (180 degrees) from

turning it part way around before dropping t:,e photocell. The lead azide/leadit. This repeated lifting and dropping styphnate relay charge was detonated

jars the sample and causes closer pack- directly by a 90/10 barium chromate/ing of the particles. At the end of 10 boron squib. This relay charge, in ttrn,minutes, the timer automatically breaks initiated the flash charge, which rupturedthŽ circuit. The volume of the sample in the case, and emitted light. A photocell-

the graduated cylinder is recorded, and oscilloscope combination was used tothe t~pped density is calculated by pick up (he light.

dividing the weight of sample in thecylinder by this volume. Materials

Blending and Loading The following materials were used:

All 60/40 potassium perchlorate/ Atomized aluminum, spherical,

aluminum compositions were blended in Valley Metallurgical, Processing Co.,accordance with Pyrotechnics Labora- Inc., particle size of fractions as given

tory Sequence of Operations P.A.C.U. in Table 1 (p 8).

No. 5 (September 1957). The compo-sitions were loaded ipto Titan flash Potassium perchlorate; Specificationcartridges in accordance with Loading PA-PD-254, I. M. Sobin Co., averageBranch Sequence of Operations T1034- particle diame(er, 24 microns; particle5-26. Each Titan cartridge contained s;ze of fractions as given in Table 1.

145 mg of lead azide and 35 mg of leadstyphnate in the relay charge. No delay Titan charge case loading assembly,

"charge was used. The relay cup was Drawing CXP- 107583, dated 5 Februarysecured to the cartridge with Duco 1959 (Fig 6, p 22), except that the case

cement, while an epoxy resin was used and cover are fabricated of cotton-to _. al the cover to the cartridge body flock-filled, aitrile-rubber-modified(Fig 6, p 22). phenolic resin (GE 12808).

6

7•i

,=U

REFERENCES 4. Nieradka, Mary N., PyrotechnicsL H. E.T. Haultain, Trans. Canad. Iist. Laboratory Handbook of Particle

Mining & Metallhgy, 40, p. 229 (1937) Size Procedures, Picatiany Arsenal2- Cadle, R. D., Particle Size Deter- (1956), pp 55-57

mination. hzterscience Publishers,Inc., pp. 240-246 (1955) 5. Dallavalle, J. %f., Mlicromeriticso

3- Pulletins 101 and 1244, Sharples Corp., Pitman Publishing Corp., 2nd Ed.,Bridj, .port, Pa. p. 144 (1948)

7

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12

TABLE 4

Topped density of aluminum and potassium perchlorate fractions

Particle Size90% Particle Size

Size Range, microns Average, microns Topped Density,Ingredient Code (Microscopic Count) (Fisher Sub-Sieve Sizer) g/cc

Aluminum F 0-17.0 5 1.38

M 4-40.0 14 1.63C 24.0-62.0 39 1.68

PotassiumPerchlorate F 0-12.0 3 1.00

M 0-23.0 11 1.12C 6.0-85.0 24 1.52

134 4 IF

,F

F; F

* * I- ,,

TABLE 5

Tapped dtnsity of 60/40 potassium perchlorate/olumlnum compositions

containing specified parti "- size fractions

Potassium Perchlorato Pa-ticle Size Aluminum

Particle Size

90% Particle Size Average, 90% Particle Size Average,

Range, microns microns Range, microns ýuizrofn

TaFped

Size (Microscopic (Fisher S ub SIze (Microscopic

(Fisher Sub- Density.

Code Count) Sieve Sizer) Code Count)

Sieve, Si sor) g/cc

IF 0-12.0 3.0 F 0-17.0 5.0

0.85

G- 0-23.0 11.0 F 0-17.0 5.0 1.23

C 6.0-85.0 24.0 F 0-17.0 5.0

1.56

F 0-12.0 3.0 C 24.0-62.0 39.0

0.98

kM 0-23.0 11.0 M 8.4-40.0

14.0 1.34

C 6.0-85.0 24.0 C 24.0-62.0 39.0

1.62

14

7_

S. ... ... Z7• ....

TABLE 6

Pyrotechnics Laobotory thermochemical calcuiation shlet

Ho. 101

Density

Ingredients % Mot Wt AlHf 2 9 80K 1IF2 9 8oK g/ml

Aluminum (s) 34.2 26.97 0 0 2.70Potassium perchlorate (s) 65.8 138.55 103.6 72.7 2.524

ProductsA1, 01 (s) 64.6 101.94 400.2 378.0 4.00KCI (s) 35.4 74.56 104.2 97.7 1.99

Reaction: 8 Al + 3 KCIO4 ", 4 A1,0O + 3 Ka

Stoich: 8 (27) + 3 (138.6)-. 4 (101.94) + 3 (74.5 6 )

AHR 8 (0) + 3 (103.6) -. 4 (400.2) + 3 (104.2)

AHF 8 (0) + 3 (72.7) - 4 (378.0) + 3 (97.7)

Reactants, wt, g 631.8 Theoretical density, g/ml (calc) 2.57

Ali,, Kcal, (calc) 1602.6 - Ali,, cal/g (calc) 2538.0 AHr, cal/ml (calc) 6515

AFz, Kcal, (calc) 1587.0 AF., cal/g (calc) 2507.0 AF., cal/ml (calc) 6443

Adiabatic temperature, 'K (calc) 3800 Gas volume at 298PK, liters 0

Equivalents:

I g A! - 1.C26 3 KCIO, - 7410 cr.2/g

1 g KCIO4 -. 0.520 g Al - 3852 cal/i

Thstoretical vsaxim-n composition. Al = 55.5% KCIO4 . 44.5%

Ref: JANAF Interim Theormochemical Table Ccmputed: G. Weingarten

Dow Chemical (.o., Mtdland, Michigan Checked: S. M. .aye

15p

TABLE 7

Pyrotechnics Laborotory thermoche'icot co[cdution s1~eet

Ho. 100

Densify

ingredients No M0ol Wt os Alif 2 9B0K K F 2 9 8'K g/ml

~umi.nu (s) 40 26.97 .0148 0 0 2.70

Potassitmo perchlorate (S) 60 138.55 .0043 103.6 72.7 2.524

JM1O, (5) 58.1 101.94 .0057 400.2 378.0 4.00

I32.0 74.56 .0043 104.2 97.7 1.99

ICl (') 9.2 26.9B .0034 0 0 2.70

k, actioa .0148 Al + .0043 KC-O- .0057 A11O, + .0043 KCI + .0034 AlStoich" (.0148) (27) + .0043 (138.55)-, .0057 (101.94) + .0043 (74.56) + .0034 (27)

AR M148 (0) + .0043 (103.6) -. .0057 (400.2) + .0043 (104.2) 4 .0034

(0)

l .Reactants, lt, g, L00 Theoretical density, g/ml (calc)

2.624

All,, iKcal (calc) 2.2837 A".. cal/g (calc) 2284

AHM, cal/nit (calc) 6000

Adiabatic temperature, OK (calc) 3800 Gas volume a: 298'K,

liters 0

Equivalents:.

. gAt - 1.5 g KCIO. - 5710 cal

1 g KCIO. - 0.667 g Al - 3810 cil

Ref: JAN AF Interim Thermochemical Table

Cocputed: G. Weingarten

Dow Chemical Co., Nfidland, Michigan Checked: S. M. Kaye

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DISTRIBUTION LIST

Copy No.

Commanding OfficerPicatinny ArsenalATTN: -1 echnical Information Section 1- 5

Dover, N. J.

Chief of OrdnanceDept of the Army

ATTN: ORDTS 6

ORDIM 7

ORDTB 8

ORDTU 9

Washington 25, D. C.

Commanding GeneralOSAC

Picatinny ArsenalATTN: ORDSW-W 10

ORDSW-A 11

Dover, N. J.

Plastics Technical Evaluation Center

Picatinny Arsenal

ATTN: Director 12- 13

Dovcr, N. J.

Armed Services Technical Information Agency

Arlington Hall StationArlington 12, Virginia 14 - 23

Commanding General

Ordnance Ammunition Command

ATTN: ORDLY-AR'AC 24

Joliet, Illinois

Commanding GeneralAberdeen Proving Ground

ATTN: Technical Library, ORDBG-LM 25- 26

Maryland

26

Copy No.

Bureau of Naval Weapons

Dept of the NavyATTN: Section Re2c 27Washington 25, D. C.

CommanderNaval Ordnance LaboratoryATTN: Library 28White OakSilver Spring, Maryland

CommanderU. S. Naval Proving GroundATTN: OMI 29Dahlgren, Virginia

CommanderU. S. Naval Ordnance Test StationInyokern, P. 0. China LakeCalifornia 30

Los Alamos Scientitic LaboratoryLos Alamos, New Mexico "31

Commanding OfficerFrankford Arsenal

ATTN: Library Branch, 0270, Bldg 40 32- 33Bridge & Tacony Sts.

Philadelphia 37, Pa.

Commanding GeneralWright Air Develpment DivisionWright-Patterson Air Force BaseOhio 34

Air Research and Development Command lIqP. 0. Box 1395Baltimore, Maryland 35

27

-

* I Copy No.Army Research Office (Durham)I Box CM, Duke StationDurham, North Carolina 36

Director of Research and Development

Dept of the Air ForceHQ~ USAF, DCS/DWashington 25, D. C. 37

fCommanding OfficerHolloman Air Development CenterHolloman Air Force BaseAlamogordo, New Mexico 38

Hq. Air Proving Ground CommandDirectorate of Armament, DCS/DEglin Air Force BaseFlorida 39

Commanding OfficerRadford ArsenalRadford, Virginia 40

British joint Services MissionMinistry of Supply Staff

ATTN: Reports Officer1800 K Street, NWViashington, D. C. 41

Co.mmanding GeneralArmy Chemical CenterATTN: Chemical and Radiological Lab 42Maryl and

Commanding OfficerIowa Ordnance PlantATTN: ORDCW-CO 43Burlington, Iowa

t28

I _oy -W

Copy Ho.

Bureau of Naval Weapons

Dept of the NavyWashington 25, D. C. 44

Canadian Arma.ment Research & Development Establishment

P. 0. Box 1427Quebec, P. 0. Canada

45

Commanding Officer

Indiana Arsenal

Charlestown, Indiana 46

Jet Propulsion Laboratory

Ca!ifornia Institute of Technology4800 Oak Grove Drive

Pasadena 3, California 47

Commanding Officer

U. S. Naval Propellant Plant

Indian Head, Maryland 48

Royal Ordnance Factory

ATTN: Chemist in Charge,Chemical Inspectorate

49

Bishopton, Renfrewshire, Scotland

Solid Propellant Information AgencyApplied Physics Laboratory

The Johns Hopkins University

Silver Spring, Maryland 50

OfficeAssistant Secretary of Defense

Pentagon Building

ATTN: Director,Standardization Division, OASD (S&L)

51

Washington 25, D. C.

29

4-A

,2*

Copy No.

Commanding Officer

Diamond Ordnance Fuze Laboratories 52

ATTN: Technical Reference Section

Connecticut Ave., at Van Ness St., NW

Washington 25, D. C.

3

30

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