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BRITISH STANDARD BS EN 12735-1:2001Incorporating

 Amendment No. 1

Copper and copperalloys — Seamless,

round copper tubes for

air-conditioning and

refrigeration —

Part 1: Tubes for piping systems

The European Standard EN 12735-1:2001, with the incorporation ofamendment A1:2005, has the status of a British Standard

ICS 77.150.30; 91.140.30

 

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BS EN 12735-1:2001

This British Standard waspublished under the authorityof the Standards Committeeand comes into effecton 15 June 2001

© BSI 2006

ISBN 0 580 37091 7

National foreword

This British Standard was published by BSI. It is the UK implementation ofEN 12735-1:2001, incorporating amendment A1:2005.

The start and finish of text introduced or altered by amendment is indicated in

the text by tags!". Tags indicating changes to CEN text carry the numberof the CEN amendment. For example, text altered by CEN amendment A1:200X is indicated by!".

The UK participation in its preparation was entrusted by Technical CommitteeNFE/34, Copper and copper alloys, to Subcommittee NFE/34/1, Wrought andunwrought copper and copper alloys.

 A list of organizations represented on NFE/34/1 can be obtained on request toits secretary.

This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

 Amendments issued since publication

 Amd. No. Date Comments

16627 29 September 2006 See national foreword

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EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 12735-1 April 2001

ICS 23.040.15

English version

Copper and copper alloys — Seamless, round copper tubes for air-conditioning and refrigeration — Part 1: Tubes for 

piping systems

Cuivre et alliages de cuivre — Tubes ronds sans soudureen cuivre pour l'air conditionné et la réfrigération —

Partie 1: Tubes pour canalisations

Kupfer und Kupferlegierungen — Nahtlose Rundrohre ausKupfer für die Kälte- und Klimatechnik — Teil 1: Rohre für 

Leitungssysteme

This European Standard was approved by CEN on 6 March 2001.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

COM IT É E UROPÉ E N DE NORM AL ISAT ION

E UROPÄISCHE S KOM IT E E FÜR NORM UNG

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2001 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

Ref. No. EN 12735-1:2001 E

+ A1 April 2005

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Page 2EN 12735-1:2001

© BSI 2006

Contents

Page Page

Foreword ........................................................... 3 Introduction ...................................................... 4

1 Scope ......................................................... 4

2 Normative references  ............................... 4

3 Terms and definitions  .............................. 4

4 Designations  ............................................. 54.1 Material ....................................................... 54.2 Temper ....................................................... 54.3 Product ....................................................... 5

5 Ordering information  ............................... 6

6 Requirements  ........................................... 66.1 Composition ................................................ 66.2 Mechanical properties ................................ 76.3 Dimensions and tolerances ........................ 76.4 Drift expanding ........................................... 106.5 Surface quality ............................................ 106.6 Freedom from defects ................................ 10

7 Sampling  ................................................... 10

8 Test methods  ......................................... 108.1 Analysis ................................................... 108.2 Tensile test .............................................. 108.3 Hardness test ........................................... 108.4 Drift expanding test .................................. 118.5 Residue test............................................... 118.6 Eddy current test ...................................... 118.7 Retests ..................................................... 11

9 Declaration of conformity andinspection documentation  .................... 12

9.1 Declaration of conformity ......................... 129.2 Inspection documentation ........................ 12

10 Packaging, marking and form of delivery  ................................................... 12

10.1 Packaging and marking ........................... 1210.2 Form of delivery ....................................... 12

Bibliography ...................................................... 14

 Annex ZA (informative) Relationship between

this European Standard and the Essential

Requirements of EU Directive 97/23/EC………...13

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Page 3EN 12735-1:2001

Foreword

This European Standard has been prepared by Technical Committee CEN/TC 133, Copper and copper alloys,the Secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at

the latest by October 2001.Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 3.1, Copper tubes, to prepare the following standard:

EN 12735-1, Copper and copper alloys — Seamless, round copper tubes for air-conditioning and refrigeration — Part 1: Tubes for piping systems.

This European Standard has been prepared under a mandate given to CEN by the European Commission andthe European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard.

The attention of the user of this standard is drawn to the fact that national or local regulations or practices mightrestrict the choice of dimensions and tempers in the application of products conforming to this standard.

This is one of a series of European Standards for copper and copper alloy tubes. Other products are specified

as follows:

EN 1057, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and heating applications.

EN 12449, Copper and copper alloys — Seamless, round tubes for general purposes.

EN 12450, Copper and copper alloys — Seamless, round copper capillary tubes.

EN 12451, Copper and copper alloys — Seamless, round tubes for heat exchangers.

EN 12452, Copper and copper alloys — Rolled, finned, seamless tubes for heat exchangers.

EN 12735-2, Copper and copper alloys — Seamless, round copper tubes for air-conditioning and refrigeration — Part 2: Tubes for equipment.

EN 13348, Copper and copper alloys — Seamless, round copper tubes for medical gases.

EN 13349, Copper and copper alloys — Pre-insulated copper tubes with solid covering.

EN 13600, Copper and copper alloys — Seamless copper tubes for electrical purposes.

 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.

© BSI 2006

Foreword to amendment A1

This document (EN 12735-1:2001/A1:2005) has been prepared by Technical Committee CEN/TC 133

“Copper and copper alloys”, the secretariat of which is held by DIN.

This Amendment to the European Standard EN 12735:2001 shall be given the status of a national standard,

either by publication of an identical text or by endorsement, at the latest by October 2005, and conflicting

national standards shall be withdrawn at the latest by October 2005.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC.

For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this

document.

 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland

and United Kingdom.

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Page 4EN 12735-1:2001

Introduction

It is recommended that tubes manufactured to this standard are certified as conforming to the requirements of this standard based on continuing surveillance which should be coupled with an assessment of a supplier’squality management system against EN ISO 9001.

1 Scope

This European Standard specifies the requirements, sampling, test methods and conditions of delivery for seamless round copper tubes used for refrigeration and air-conditioning piping systems (i.e. piping,connections, repairs).

These tubes are supplied in straight lengths in the hard or half-hard tempers, or in coils in the annealed temper.

2 Normative references

This European Standard incorporates, by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references, thelatest edition of the publication referred to applies (including amendments).

EN 1655, Copper and copper alloys — Declarations of conformity.

EN 1971, Copper and copper alloys — Eddy current test for tubes.

EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test (at ambient temperature).

EN 10204, Metallic products — Types of inspection documents.

EN 10234, Metallic materials — Tube — Drift expanding test.

EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1:1997).

NOTE Informative references to documents used in the preparation of this standard, and cited at the appropriate places inthe text, are listed in the bibliography.

3 Terms and definitions

For the purposes of this standard, the following terms and definitions apply.

3.1seamless round copper tubehollow semi-finished product, circular in cross-section, made of copper, having a uniform wall thickness, whichat all stages of production has a continuous periphery

3.2mean diameter arithmetical mean of any two diameters normal to each other at the same cross-section of the tube

3.3deviation from circular formdifference between the maximum and minimum outside diameters measured at any one cross-section of thetube

© BSI 2006

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Page 5EN 12735-1:2001

3.4deviation from concentricityhalf of the difference between the maximum and minimum wall thicknesses at the same cross-section of thetube

3.5

production batchdefinite quantity of products of the same form, the same temper and the same cross-sectional dimensionsmanufactured during the same production sequence under uniform conditions

4 Designations

4.1 Material

4.1.1 General

The material is designated either by symbol or number (see 6.1).

4.1.2 Symbol

The material symbol designation is based on the designation system given in ISO 1190-1.

NOTE Although the material symbol designation used in this standard might be the same as that in other standards usingthe designation system given in ISO 1190-1, the detailed composition requirements are not necessarily the same.

4.1.3 Number 

The material number designation is in accordance with the system given in EN 1412.

4.2 Temper 

For the purposes of this standard, the following designation, which is in accordance with the system given inEN 1173, applies for the material temper (see Table 1):

R... Temper designated by the minimum value of tensile strength requirement for the product withmandatory tensile strength and elongation requirements.

4.3 Product

The product designation provides a standardized pattern of designation from which a rapid and unequivocaldescription of a product is conveyed in communication. It provides mutual comprehension at the internationallevel with regard to products which meet the requirements of the relevant European Standard.

The product designation is no substitute for the full content of the standard.

The product designation for products to this standard shall consist of:

— denomination (copper tube);

— number of this European Standard (EN 12735-1);

— temper designation (see Table 1);

— nominal cross-sectional dimensions: outside diameter  wall thickness (see Table 2).

The derivation of a product designation is shown in the following example.

© BSI 2006

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Page 6EN 12735-1:2001

EXAMPLE Copper tube conforming to this standard, in temper R290 (hard), nominal outside diameter 28 mm, nominal wallthickness 1,5 mm, shall be designated as follows:

5 Ordering information

In order to facilitate the enquiry, order and confirmation of order procedures between the purchaser and thesupplier, the purchaser shall state on his enquiry and order the following information:

a) quantity of product required (length, mass);

b) denomination (copper tube);

c) number of this European Standard (EN 12735-1);

d) temper designation (see 4.2 and Table 1);

e) nominal cross-sectional dimensions: outside diameter  wall thickness (see Table 2);

f) nominal length (see 10.2);

g) form of delivery (see 10.2);

NOTE 1 It is recommended that the product designation, as described in 4.3 is used for items b) to e).

NOTE 2 In addition, the purchaser may also state on the enquiry and the order special requirements, if any.

EXAMPLE 1 Ordering details for 500 m copper tube conforming to EN 12735-1, in temper R290 (hard), nominal outsidediameter 28 mm, nominal wall thickness 1,5 mm, nominal length 5 m, straight lengths:

500 m Copper tube EN 12735-1 – R290 – 28  1,5 – 5 m straight lengths

EXAMPLE 2 Ordering details for 5 tonnes copper tube conforming to EN 12735-1, in temper R220 (annealed), nominaloutside diameter 12 mm, nominal wall thickness 1,0 mm, nominal length 25 m, in coils:

5 tonnes Copper tube EN 12735-1 – R220 – 12  1,0 – 25 m coiled lengths

6 Requirements

6.1 Composition

The composition shall conform to the following requirements:

Cu + Ag: min. 99,90 %;0,015 %  P  0,040 %.

This copper grade is designated either Cu-DHP or CW024A.

© BSI 2006

h) whether a declaration of conformity is required (see 9.1);

i) whether an inspection document is required, and if so, which type (see 9.2).

!

 

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Page 7EN 12735-1:2001

6.2 Mechanical properties

The tensile strength and elongation shall conform to the requirements given in Table 1. The test shall becarried out in accordance with 8.2.

Table 1 — Mechanical properties

Temper 

Designation inaccordance with

EN 1173

Common term

Tensile strength Rm

MPa

min.

Elongation A

a

%

min.

Hardness (indicative)HV 5

R220 annealed 220 40 (40 to 70)

R250 half-hard 250 30 (75 to 100)

R290 hard 290 3 (min. 100)

NOTE 1 Hardness figures in parentheses are not requirements of this standard but are given for guidance purposesonly.

NOTE 2 1 MPa is equivalent to 1 N/mm2.a The original gauge length ( L0) is calculated proportionally using the formula:

 L0 = k   )(piecetesttheof areasectional-crossoriginal 0S  ;

where k  has the value 5,65, except that the minimum gauge length used shall be 30 mm.

6.3 Dimensions and tolerances

6.3.1 General

The geometrical properties of the tubes are defined by outside diameter, wall thickness and length.NOTE For reference purposes, if DN designation of size for components of a pipework system is required, it can becalculated for tubes to this standard by:

Nominal outside diameter (d ) - 2  nominal wall thickness (e)

DN is defined as a dimensionless whole number which is indirectly related to the physical size, in millimetres, of the bore or outside diameter of the end connections.

In cases of dispute, the dimensions shall be measured at a temperature of (23 ± 5) °C.

6.3.2 Nominal dimensions

The standardized nominal outside diameters and nominal wall thicknesses are given in Table 2. Therecommended lengths are indicated in 10.2.

Other designs and dimensions can be agreed between the purchaser and the supplier.

© BSI 2006

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Page 8EN 12735-1:2001

Table 2 — Nominal outside diameters and wall thicknesses

Nominal outside diameter d 

Nominal wall thicknesse

mm

Imperial seriesMetric series

mm mm in 0,8 1,0 1,25 1,5 1,65 2,0 2,5

  3,18 1/8 •

  3,97 5/32 • •

  4,76 3/16 •

  6     • •

  6,35 1/4 • •

  7,94 5/16 • •

  8     • •

  9,52 3/8 • •

  10     •     •

  12     •

  12,7 1/2 •     •

  15     •

  15,87 5/8     •

  18     •

  19,06 3/4 •  

  22     •

  22,23 7/8 •  

  25,4 1  

  28  

  28,57 1 1/8  

  34,92 1 3/8  

  35  

  41,27 1 5/8  

  42  

  53,97 2 1/8  

  54  

  64  

  66,67 25

/8     76,1  

  79,37 3 1/8  

  88,90 3 1/2  

  92,07 3 5/8  

104,80 4 1/8  

108  

NOTE This table is a first step towards a standard including only metric values.

  Available in straight lengths.

•  Available in coils.

© BSI 2006

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6.3.3 Tolerances on outside diameter 

The outside diameter shall conform to the tolerances given in Table 3.

Table 3 — Tolerances on outside diameter Values in millimetres

Tolerances on nominal diameter Nominal outside diameter d 

Applicable tomean diameter 

Applicable toany diameter

a

over up to and including all tempers R290 (hard) temper R250 (half-hard) temper  

  3 18 ± 0,04 ± 0,04 ± 0,09

18 28 ± 0,05 ± 0,06 ± 0,10

28 54 ± 0,06 ± 0,07 ± 0,11

54 76,1 ± 0,07 ± 0,10 ± 0,15

  76,1 88,9 ± 0,07 ± 0,15 ± 0,20

  88,9 108 ± 0,07 ± 0,20 ± 0,30a Including deviation from circular form.

6.3.4 Tolerances on wall thickness

The tolerance on wall thickness, expressed in percentage of the nominal thickness, as measured at any point,shall conform to the requirements given in Table 4.

Table 4 — Tolerances on wall thickness

Tolerances on wall thicknesse a

Nominal outside diameter d 

mm

e < 1 mm

%

e  1mm

%

< 18 ± 10 ± 13

 18 ± 10 ± 15a  Including deviation from concentricity

6.3.5 Tolerance on length

Lengths shall be equal to or greater than those ordered.

6.3.6 Tolerances of form

6.3.6.1  Deviation from circular form

Deviation from circular form for R290 (hard) and R250 (half-hard) temper tubes is included in the tolerances onthe outside diameter given in Table 3.

Unless otherwise agreed between the purchaser and the supplier, no tolerances on deviation from circular formare applicable to R220 (annealed) temper tubes except coiled tubes with diameters up to and including 16 mm.In this case the maximum deviation from circular form shall be 7 % of the outside diameter.

© BSI 2006

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6.3.6.2  Deviation from concentricity

The deviation from concentricity is included in the wall thickness tolerance given in Table 4.

6.3.6.3  Straightness

For tubes supplied in R290 (hard) temper in straight lengths, a straightness tolerance may be agreed betweenthe purchaser and the supplier.

6.4 Drift expanding

No crack, break or tearing of the metal shall be visible to the unaided eye, corrected for normal vision if necessary, when tubes with a nominal outside diameter  18 mm in the R220 (annealed) and R250 (half-hard)tempers are tested in accordance with 8.4.

6.5 Surface quality

The inner and outer surfaces of the tubes shall be clean and smooth.

The inner surface of the tubes shall be capable of passing the reference residue test described in 8.5. Theresidue left after the solvent has evaporated shall not exceed 38 mg/m 2 of the inner surface.

6.6 Freedom from defects

The tubes shall be free from defects that could be detrimental to their use.

 All tubes less than or equal to 42 mm diameter shall be subjected to the eddy current test described in 8.6.

For tubes greater than 42 mm diameter, a method of non-destructive testing, if required, shall be agreedbetween the purchaser and the manufacturer.

7 SamplingFor the purposes of demonstrating conformity to the dimensional requirements of this standard and therequirements of 8.1, 8.2 and 8.4, the sampling rate shall be at least one sampling unit for each 3 000 kg or for each production batch whichever is the smaller.

NOTE Results may be used from analyses carried out at an earlier stage of manufacturing the product, e.g. at the castingor billets inward stage, if the material identity is maintained and if the quality management system of the manufacturer iscertified as conforming to EN ISO 9001.

8 Test methods

8.1 Analysis

 Analysis shall be carried out on the test samples obtained in accordance with clause 7. The analytical methodsused shall be chemical or spectrographic in accordance with appropriate European or international standards.

In cases of dispute, the reference method shall be by chemical analysis.

8.2 Tensile test

The tensile test shall be carried out in accordance with the method given in EN 10002-1, on test piecesprepared from the test samples obtained in accordance with clause 7.

8.3 Hardness test

When required, the Vickers hardness test shall be carried out in accordance with EN ISO 6507-1.

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8.4 Drift expanding test

The drift expanding test shall be carried out in accordance with EN 10234. The outside diameter of the tubeend shall be expanded by 30 % using a conical mandrel with an angle of 45.

8.5 Residue test

Use a minimum length of tube of 1 500 mm to perform the test.

Close one end of the tube test piece and pour in suitable solvent, to one eighth of its capacity. Close the other end of the test piece and agitate the tube, in order to clean thoroughly the whole of its internal surface. Openone end of the tube and pour the solvent into a clean beaker. Open the other end to ensure all solvent isremoved. Evaporate the solvent and dry the beaker in an oven at 100 °C to 110 °C for 10 min. Cool the beaker in a desiccator and weigh it.

Carry out a blank test using the same quantity of solvent. Subtract the value obtained in the blank test from thevalue obtained in the residue test and calculate the mass per unit area of internal surface.

The quantity of solvent used may vary with the size of the tube being examined. The quantity of solvent used

for the blank test shall be the same as that used for the actual examination of the tube sample.

For a reference test trichlorethylene shall be used.

NOTE For routine controls in the course of quality assurance procedures, other methods may be used as an alternative.

8.6 Eddy current test

The test shall be carried out in accordance with EN 1971.

The reference standard tube shall contain holes produced from the drill diameters in Table 5.

Table 5 — Drill diameters for reference standard tube

Dimensions in millimetres

Nominal outside diameter d 

Drill diameter 

over up to and including max.

  3 26 0,8

26 42 1,2

Signals produced by reference standard tubes set the sorting limits for acceptance or rejection. Tubescontaining defects which produce signals equal to or greater than the sorting limit shall be rejected.

8.7 Retests

In the event that the tube sample fails to meet the test requirements, the batch represented by the tubesample or, in the case of continuous production, all tubes manufactured since the previous check, shall beplaced in a bond.

Further samples shall be taken from the bonded tubes at a sampling rate four times more frequent thanspecified in clause 7. If any of the retest samples fail to meet the specification requirements, the tubesrepresented by the samples shall be deemed not to meet the requirements of this standard and shall berejected. If all the retest samples meet the requirements, the tubes represented by the samples shall bedeemed to meet the requirements of this standard.

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9 Declaration of conformity and inspection documentation

9.1 Declaration of conformity

9.2 Inspection documentation

When requested by the purchaser [see 5 i)] and agreed with the supplier, the supplier shall issue for the

10 Packaging, marking and form of delivery

10.1 Packaging and marking

Each tube shall be capped, plugged or otherwise closed at both ends so as to maintain the internalcleanliness of the tube under normal conditions of handling and storage.

NOTE Plug design should be such to prevent the plug from being forced into the tube bore beyond its depth.

The tubes shall be packaged in such a way that they are effectively protected in normal transport andhandling conditions.

The tubes shall be packaged in uniform batches, i.e. of the same dimensions and temper, and each packageshall indicate at least the following information in a legible and indelible manner:

— number of this standard (EN 12735-1);

— nominal cross-sectional dimensions: outside diameter  wall thickness;

— quantity;

— temper;

— manufacturer’s identification mark.

10.2 Form of delivery

Coiled tubes are usually supplied in 25 m or 50 m lengths.

Straight tubes are usually supplied in 3 m, 5 m or 6 m lengths.

© BSI 2006

When requested by the purchaser [see 5 h)] and agreed with the supplier, the supplier shall issue for theproducts the appropriate declaration of conformity in accordance with EN 1655.!

 

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products the appropriate inspection document in accordance with EN 10204.!

"NOTE When ordering material for pressure equipment applications, the equipment manufacturer has the obligation torequest appropriate inspection documentation according to EN 10204.

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Annex ZA(informative) 

Relationship between this European Standard and the EssentialRequirements of EU Directive 97/23/EC

This European Standard has been prepared under a Mandate given to CEN by the European Commission andthe European Free Trade Association to provide a means of conforming to Essential Requirements of the New

 Approach Directive 97/23/EC.

Once this standard is cited in the Official Journal of the European Communities under that Directive and hasbeen implemented as a national standard in at least one Member State, compliance with the clauses of thisstandard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption ofconformity with the corresponding Essential Requirements of that Directive and associated EFTA regulations.

For this harmonized supporting standard for materials, presumption of conformity to the EssentialRequirements of the Directive is limited to technical data of the material in the standard and does not presumeadequacy of the material to specific equipment. Consequently the technical data stated in the materialstandard should be assessed against the design requirements of the specific equipment to verify that theEssential Requirements of the Pressure Equipment Directive (PED) are satisfied.

Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC

Clause(s)/subclause(s)

of this ENSubject

Qualifyingremarks/Notes

6.2 Material properties  Annex I 4.1(a)

of the Directive

9.2 Conformity of material and manufacturer's certified documentation  Annex I 4.3of the Directive

NOTE Brittle fracture prevention: Copper, having a face-centred cubic crystal structure, does not suffer a transitionfrom ductile to brittle failure like some other materials.

WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling withinthe scope of this standard. 

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Page 14EN 12735-1:2001

Bibliography

In the preparation of this European Standard, use was made of a number of documents for reference purposes.These informative references are cited at the appropriate places in the text and the publications are listedhereafter.

EN 1173, Copper and copper alloys — Material condition or temper designation.

EN 1412, Copper and copper alloys — European numbering system.

EN ISO 9001, Quality management systems - Requirements (ISO 9001:2000).

ISO 1190-1, Copper and copper alloys — Code of designation — Part 1: Designation of materials.

© BSI 2006

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BS EN12735-1:2001

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