KE 35 GASTEC QA - Kiwa 35 definitief.pdfThese GASTEC QA Approval requirements replace the GASTEC QA Approval Requirements 35, Compression fittings for joining copper pipes, July 2005

KE 35 March 2012

GASTEC QA

Approval Requirements 35

for the GASTEC QA product certificate for compression fittings for joining copper pipes

GASTEC QA Approval Requirements KE 35

© Kiwa Nederland B.V. - 2 - March 2012

Kiwa Nederland B.V.

Wilmersdorf 50

7327 AC Apeldoorn

Postbus 137

7300 AC Apeldoorn

The Netherlands

Tel. +31 55 539 33 93 Fax +31 55 539 34 94 www.kiwa.nl

© 2012 Kiwa Nederland B.V. All rights reserved. No part of this book may be reproduced, stored in a database or retrieval system, or published, in any form or in any way, electronically, mechanically, by print, photo print, microfilm or any other means without prior written permission from the publisher. The use of this evaluation guideline by third parties, for any purpose whatsoever, is only allowed after a written agreement is made with Kiwa to this end.

Foreword

These GASTEC QA Approval requirements have been accepted by the Board of Experts of the GASTEC QA

Quality Mark, wherein all the relevant parties in the field of gas related products are represented. This Board of

Experts also supervises the certification activities and where necessary require the GASTEC QA Approval

Requirements to be revised. All references to Board of Experts in these GASTEC QA Approval requirements

pertain to the above mentioned Board of Experts.

These GASTEC QA Approval requirements will be used by Kiwa Nederland B.V. in conjunction with the “Kiwa

regulations for carrying the GASTEC QA Quality mark”. This regulation details the method employed by Kiwa

Nederland B.V. for conducting the necessary investigations prior to issuing the (technical approval-with) product

certificate and the method of external control. The inspection frequency is determined by the above mentioned

Board of Experts.

Approved by Board of Experts :15-02-2012

Accepted by Kiwa Nederland B.V. :15-03-2012



Contents

Contents 3

1 Introduction 6

1.1 General 6

1.2 Scope 6

1.3 Acceptance of test reports provided by the supplier 6

2 Product Requirements 7

2.1 General 7

2.2 Materials 7 2.2.1 Copper/Tin alloys 7

2.3 Construction 7 2.3.1 Sealing 7 2.3.2 Transition fittings 7 2.3.3 Nominal diameter 7 2.3.4 Nut across flats 8 2.3.5 Adaptor fittings 8 2.3.6 Hardness of the compression ring 8 2.3.7 Internal support 8

2.4 Functional requirements 8 2.4.1 Leak tightness under internal hydrostatic pressure 8 2.4.2 Air tightness 8 2.4.3 Resistance to pull-out 8 2.4.4 Resistance against bending 8 2.4.5 Resistance against torsion 8 2.4.6 Resistance to assembly forces 9 2.4.7 Resistance to repeated assembly 9 2.4.8 Impact resistance of joint assemblies 9 2.4.9 Resistance to dynamic loads 9

3 Testing methods 10

3.1 General 10 3.1.1 Samples 10

3.2 Leak tightness under internal hydrostatic pressure 10

3.3 Determining the resistance against internal air pressure 10 3.3.1 Testing installation 10 3.3.2 Working method 10

3.4 Determining the resistance to pull-out 10

3.5 Determining the resistance against a bending 10 3.5.1 Testing installation 10 3.5.2 Test samples 11

3.6 Determining the resistance against forces during assembly 11 3.6.1 Testing installation 11 3.6.2 Test samples 11



3.6.3 Working method 11

3.7 Determining the resistance to repeated assembly 12 3.7.1 Testing installation 12 3.7.2 Test samples 12 3.7.3 Working method 12

3.8 Determining the impact resistance of joint assemblies 12 3.8.1 Testing installation 12 3.8.2 Test samples 12 3.8.3 Working method 12

3.9 Determining the resistance to dynamic loads 13

3.10 Marking and assembly instructions 13 3.10.1 Marking 13 3.10.2 Assembly instructions 13

4 Quality system requirements 14

4.1 General 14

4.2 Manager of the quality system 14

4.3 Internal quality control/quality plan 14

4.4 Procedures and work instructions 14

4.5 Other Quality system requirements 14

5 Summary of tests and inspections 15

5.1 Test matrix 15

5.2 Evaluation of the quality system 16

5.3 Frequency of external audits 16

6 Agreements on the performance of certification 17

6.1 General 17

6.2 Certification staff 17

6.3 Qualification requirements for executive staff of CI that fulfil the requirements of NEN-EN 45011:1998 17

6.4 Qualification requirements for executive staff of a CI that are in addition set up by the Board of Experts

for the subject of this evaluation guideline 18

6.5 Qualification 18

7 List of referenced documents 19

7.1 Standards/ normative documents 19

7.2 Replacement(s) of standard/ normative documents 19

Appendix B 20

Appendix A: Model IQC-scheme or frame-IQC-scheme Appendix B: Model Certificate



Summary of changes

Paragraph Change

1.1 A general introduction is included

1.2 Joints with annealed copper pipes added

1.3 A clause regarding the acceptance of test reports provided by the supplier is included

2.1 A general introduction to the product requirements is included

2.2.2 Other surfaces has been deleted

2.3.2.2 GASTEC QA Approval Requirements 6 has been added for transition fittings with capillar soldering

2.4.8 Determining the impact resistance of joint assemblies

3.10 Added marking requirements for inserts for annealed copper pipes

0 Summary of tests and inspections included

6 Agreements on the performance of certification included

7 List of referenced documents included

Appendix A Model of IQC-scheme included

Appendix B Model Certificate included

General Appendix KE 35-A1 is included



1 Introduction

1.1 General These GASTEC QA Approval requirements replace the GASTEC QA Approval Requirements 35, Compression fittings for joining copper pipes, July 2005. During the execution of the certification work, Kiwa Nederland B.V. is bound to the “Kiwa regulations for carrying the GASTEC QA Quality mark”.

1.2 Scope These approval requirements apply to compression fittings for joining half-hard copper pipes (R250) or annealed copper tubes (R220) according to GASTEC QA Approval Requirements 5 for application in gas installations with a maximum working pressure of 1bar with the following diameters and wall thickness;

Nominal outside diameter x wall thickness [mm] Continued [mm]

10 x 1,0 42 x 1,5

12 x 1,0 54 x 1,5

15 x 1,0 64 x 2,0

18 x 1,0 76,1 x 2,0

22 x 1,1 88,9 x 2,0

28 x 1,2 108 x 2,5

35 x 1,5

Note: Joints with compression fittings and copper pipes with a reduced wall thickness are not part of this evaluation guideline.

The compression fittings shall be used for domestic gas installations which come in contact with 2

nd and 3

rd family

gasses according to Table 1 of NEN-EN 437. The specific functional recommendations for application of these fittings are described in the requirements and measuring methods NEN 1078 and NEN 2078, as well as in the national and international norms and/or regulations.

1.3 Acceptance of test reports provided by the supplier The rules for acceptance of test reports provided by the supplier are laid down in the Regulations for Product Certification for carrying the GASTEC QA quality mark.



2 Product Requirements

2.1 General The requirements to be met for compression fittings for use in combination with half hard copper pipes (R250) or annealed copper pipes (R220), as well as accompanying testing methods, are drawn up in the following norm: NEN-EN 1254-2 Copper and copper alloys - Accessories - Part 2: Compression joints for use in combination with copper pipes according to the GASTEC QA Approval requirement 5. Supplementary to that stated in NEN-EN 1254-2 the following mentioned requirements must be met. If the fitting is already GASTEC QA Approved according to the GASTEC QA Approval requirements 35 in combination with half hard copper pipe (R250), only the tests as mentioned in the following list of requirements shall be executed according to the GASTEC QA Approval requirements 35 in combination with annealed copper tubes (R220); KE 35, Clause 2.3.7 Internal support KE 35, Clause 2.4.3 Resistance to pull-out KE 35, Clause 2.4.4 Resistance against bending KE 35, Clause 2.4.5 Resistance against torsion KE 35, Clause 2.4.6 Resistance to assembly forces KE 35, Clause 2.4.8 Impact resistance of joint assemblies KE 35, Clause 2.4.9 Resistance to dynamic loads KE 35, Clause 3.10 Assembly instructions

2.2 Materials The manufacturer shall declare in writing that the requirements below have been met.

2.2.1 Copper/Tin alloys The fitting shall be made of copper/tin alloys which must meet the requirements as given in NEN-EN 1254-2 article 4.2. Note: The copper or copper alloys, Registered by CEN/TC 133 or Specified in European copper and copper alloy product standards have been in use for such a long time that the resistance against corrosion after 50 years, according to NEN 1078, is plausible.

2.3 Construction

2.3.1 Sealing The sealing shall be realized with a metal compression ring or cutting ring without any sealant or lubrication being applied during the assembly.

2.3.2 Transition fittings

2.3.2.1 Connection with threads Gastight connection threads must meet the requirements of NEN-EN 10226-1.

2.3.2.2 Capillar soldering Capillar soldering shall be according to Gastec QA Approval Requirements 6. In addition to that stated in NEN-EN 1254-2, Article 3.4, in case of the application of capillary end pieces the mouth of the fitting must be rounded off to a radius of 0.5 ± 0.3 mm, or must be cut off over 0.5 ± 0.3 mm at an angle of 45°.

2.3.3 Nominal diameter Contrary to NEN-EN 1254-2, Table 2, only the fittings of the following normal diameters covered with these approval requirements: DN10 - DN12 - DN15 - DN18 - DN22 - DN28 - DN35 - DN42 - DN54 - DN64 - DN76,1 - DN88,9 - DN108 - DN133 Remark: The abovementioned pipe diameters are generally applied in the Netherlands and are included as such in the GASTEC QA Approval Requirements 5.



2.3.4 Nut across flats In addition to NEN-EN 1254-2, Article 4.4.5 the width of the coupling nut flats should be according to ISO 272. If the width is greater than 46 mm, the flats might also be eight-sided. The height of the nut across flat shall be at least equal to the values given in Table 1.

Flat width [mm]

Nut across Flat height [mm] more than up to and including

22 4

22 27 5

27 32 6

32 41 7

41 50 8

50 75 9

75 10

2.3.5 Adaptor fittings With adaptor fittings and reduced couplings the transition shall be carried out gradually. The angle with the axis of the fitting part concerned shall be 60° at the maximum.

2.3.6 Hardness of the compression ring The Vickers hardness of the compression ring, measured according NEN-EN-ISO 6507-1, shall be within the values as stated by the manufacturer.

2.3.7 Internal support Compression fittings suitable for use of annealed copper tubes (R220) shall be provided with an internal support. This support can be integrated to the fitting body or a loose part. The internal support shall be provided with means to control its position in the pipe.

2.4 Functional requirements

2.4.1 Leak tightness under internal hydrostatic pressure The testing according to NEN-EN 1254-2 Article 4.6.1 “Leak tightness under internal hydrostatic pressure” shall also be carried out with an internal water pressure of 16 bar. This must be determined according to 3.2. No leakage is allowed during the test.

2.4.2 Air tightness The fitting assembly shall withstand an air pressure of 5 bar during 10 seconds. Afterwards the Compression fitting assembly shall be able to withstand an internal air pressure up to 3 bar at temperatures between -20 °C and +150 °C. This shall be determined according to 3.3. No leakage is allowed during the test.

2.4.3 Resistance to pull-out After testing, the compression fittings tested according to NEN-EN 1254-2 Article 4.6.2 “Resistance to pullout”, shall additionally be tested with an internal air pressure of 3 bar during five minutes according to 3.4. No leakage is allowed during the test.

2.4.4 Resistance against bending After testing, the compression fittings tested according to NEN-EN 1254-2 Article 4.6.3 “Leak tightness under internal hydrostatic pressure whilst subjected to bending”, shall additionally be tested with an internal air pressure of 3 bar during five minutes according to 3.5. No leakage is allowed during the test.

2.4.5 Resistance against torsion Compression fittings fitted to copper pipes must be able to withstand a torque applied at right angles to the central axis of the pipe at room temperature, determined according to 0. No damage or leakage may be detected, nor may the fittings shift from the original mounting position on the pipe.

Table 1: Minimum height nut flats



2.4.6 Resistance to assembly forces Compression fittings must be able to resist forces that arise because of tightening of the coupling nuts to a sufficient extent. This must be determined according to 3.6. Before and after this examination the fittings must be leak-tight in a test according to NEN EN 1254-2, Article 5.4 with an internal water pressure of 16 bar, and an air pressure of 3 bar respectively. No damage or leakage may be detected after the test.

2.4.7 Resistance to repeated assembly After repeated assembly (25 times), the compression fittings shall not show signs of any leakage in the testing according to 3.7.3, paragraphs a) and b). This must be determined according to 3.7.

2.4.8 Impact resistance of joint assemblies The impact-resistance of joints is determined by the impact of a falling impact-body of defined dimensions and mass of 5 kg dropped from a height of 600 mm. After the impact no leakage shall be detected at an air pressure of 3 bar during 900 sec. The fitting may not shift from its original mounting position. This shall be determined according to article 3.8.

2.4.9 Resistance to dynamic loads This requirement only applies to fittings for use with annealed copper pipe (R220). The fitting assembled according to the instructions of the manufacturer must, at a temperature of 23 ± 2 °C, meet a dynamic load of 1 x 10

6 cycles with a frequency of 10 Hz and amplitude according to Table 2. After the test no leakage shall be

detected at an air pressure of 300 kPa during 900 sec. The fitting is not allowed to displace. This shall be determined according to article 3.9.

Pipe diameter (mm) Amplitude (mm)

≤ 42 3 ± 0,5

> 42 2 ± 0,5

Table 2



3 Testing methods

3.1 General Unless otherwise stated all testing must be carried out at a temperature of 23 ± 2 °C. Temperatures must be measured to an accuracy of 5% Rdg for temperatures > 100 °C, 3 °C for temperatures between -10 °C and 100 °C and 5 °C for temperatures < -10 °C. Pressures must be measured to an accuracy of 5% Rdg. Times must be measured to an accuracy of 1 minute.

3.1.1 Samples For each test three samples are needed. These samples must be composed according to NEN-EN 1254-2, Article 5.2 and Figure 5. The compression fittings shall be assembled according to the instructions from the manufacturer. The compression fitting shall be capable to fit at pipes with the normal and reduced wall thickness range as mentioned in the GASTEC QA Approval requirements 5. All tests shall be performed in conjunction with the standard wall thickness pipes. Tests as mentioned in the clauses 3.4, 3.5, 0, 3.6 and 3.7 shall be additionally performed in conjunction with the reduced wall thickness pipes.

3.2 Leak tightness under internal hydrostatic pressure The test shall be carried out according to that stated in NEN-EN 1254-2, Article 4.6.1., and supplementary tested with an internal water pressure of 16 bar.

3.3 Determining the resistance against internal air pressure

3.3.1 Testing installation To determine the resistance against internal air pressure the test samples shall be included in an installation according to NEN-EN 1254-2, Figure 5. In this installation, the pressure required shall be realized with compressed air at the required test temperature. The samples shall be immersed in a suitable liquid at the required test temperatures.

3.3.2 Working method a) Apply to the fitting assembly an air pressure of 5 bar during 10 seconds. a) Apply directly after an air pressure of 3 bar to the test samples at room temperature and keep this pressure up. b) Immerse the test samples in water at room temperature for 900 seconds. c) Keep the test samples at a temperature of 150 ± 3°C for 6 hours. d) Immerse the test samples in a suitable liquid at a temperature of 150 ± 3°C for 900 seconds. e) Keep the test samples at a temperature of -20 ± 3°C for 6 hours. f) Immerse the test samples in a suitable liquid at a temperature of 20 ± 3°C for 900 seconds. No leakage shall occur under these circumstances.

3.4 Determining the resistance to pull-out Carry out the testing as described in NEN-EN 1254-2 Article 5.5 “Resistance to pull-out”. After the test, apply an internal air pressure of 300 kPa for 5 minutes.

3.5 Determining the resistance against a bending Carry out the testing as described in NEN-EN 1254-2 Article 5.6 “Leak tightness under internal hydrostatic pressure whilst subjected to bending”. After the test, apply an internal air pressure of 300 kPa for 5 minutes. Determining the resistance against torsion

3.5.1 Testing installation For determining the resistance against torque strain the test samples shall be included in an installation which can apply the required moment with the test sample immersed in water at room temperature. The required pressure can be realized with compressed air. The method of installation in the test installation is shown in Figure 1.



1 = fitting to be tested 4 = end fitting 7 = clamp 2 = torque 5 = stop 3 = copper pipe 6 = air pressure system

3.5.2 Test samples Prior to testing the resistance against torque the test samples shall be tested according to article 3.2 and 3.4. Working method for the resistance against torque: a) Clamp the sleeve fittings in the testing installation. b) Apply the required moment according to Table 3 to one of the non-clamped fittings, perpendicular to the central axis of the copper pipe and maintain this moment. c) Apply an air pressure of 300 kPa to the test samples and maintain this pressure. d) Immerse the test samples under water for 900 seconds. No leakage shall occur during the test.

External diameter of copper pipe in millimetres

10

12

15

18

22

28

35

42

>42

Moment in Nm 10 12 15 18 22 28 35 42 50

3.6 Determining the resistance against forces during assembly

3.6.1 Testing installation For determining the resistance to forces applied during assembly the test samples must be included in an installation according to NEN-EN 1254-2, Article 5.4.1, in which the integrity of the joint is determined at room temperature and in which the coupling nuts of the joint can be tightened.

3.6.2 Test samples Before testing the water tightness of the samples shall be tested according to Article 3.2 and NEN-EN 1254-2, Article 5.4.

3.6.3 Working method a) Determine the integrity of the joint according to

NEN-EN 1254-2, Article 5.4.and Article 3.3.2 paragraphs a) and b). b) Then turn the coupling nuts of the sleeve joints another 180°. c) Determine the integrity again as described in paragraph a).

Figure 1

Table 3

1 6 3

2

5

7

3 41

41



3.7 Determining the resistance to repeated assembly

3.7.1 Testing installation To determine the resistance to repeated assembly the test samples must be included in an installation in which, during the assembly, the moment is determined that is required to tighten the coupling nuts and in which the integrity of the joint is measured at room temperature.

3.7.2 Test samples For this determination three test samples are needed, which must be composed according to NEN-EN 1254-2, Article 5.2 and Figure 5. The compression fittings shall be installed according to the manufacturer’s instructions.

3.7.3 Working method a) Determine the maximum torque that is needed to install the coupling nuts of the sleeve joints according

to the manufacturer’s instructions. b) Disassemble these joints. c) Then assemble these joints by applying the moment determined by paragraph a). d) Repeat the actions described in paragraphs b) and c) 25 times. Finally determine the integrity according to 3.3.2, paragraphs a) and b).

3.8 Determining the impact resistance of joint assemblies

3.8.1 Testing installation To determine the resistance to impact resistance of joint assemblies the test samples must be included in an installation in which, during the impact the joint assembly is fixed. The striker (X) shall have a spherical head with a radius of 10 mm and a mass of 5 kg (see Figure 2).

3.8.2 Test samples The test sample is made of an end-fitting pipe-coupling pipe-end fitting and the joints are made in accordance with the manufacturer instructions. Each pipe length is 1000 mm.

3.8.3 Working method The test is conducted as follows:

a) Each end fitting is fixed on a rigid support. b) Perform a tightness test at 100 kPa (1 bar). c) Drop a striker from a height of 600 mm on the middle to the fitting. d) Perform a tightness test at 300 kPa (3 bar) during 900 sec. e) Check the sample for displacement and leakage by means of a foaming solution.

Figure 2:Impact resistance test assembly



3.9 Determining the resistance to dynamic loads The test sample is made of an end-fitting and the joints are made in accordance with the manufacturer instructions. The pipe length is 500 mm. The test is conducted as follows:

a) Put the assembly in an installation according to Figure 3. b) Apply at a temperature of 23 ± 2 °C a dynamic load of 1 x 10

6 cycles with a frequency of 10 ± 1 Hz and

amplitude according to Table 2. c) Check after ending of the dynamic load the fitting assembly at 300 kPa during 900 for leakage by means of

suited soap solution. d) The fitting is not allowed to displace.

3.10 Marking and assembly instructions

3.10.1 Marking In addition to NEN-EN 1254-2 the following marking shall be added.

The products are marked with the GASTEC QA work mark or punch mark. This also applies for the inserts.

This marking shall be placed on the fittings and the inserts for R220 copper pipes.

The inserts are marked with the diameter x wall thickness.

3.10.2 Assembly instructions In addition to that stated in NEN-EN 1254-2, Article 7, the manufacturer must also supply assembly instructions in Dutch. This must also contain:

The tightening moment or the number of times the coupling nut must be tightened during the assembly.

The necessity to use inserts when fittings are used in combination with R220 copper pipes.

Figure 3



4 Quality system requirements

4.1 General This chapter contains the requirements that have to be fulfilled by the manufacturer’s quality system.

4.2 Manager of the quality system Within the manufacturer’s organisational structure an employee must be designated for being in charge of managing the quality system.

4.3 Internal quality control/quality plan As part of the quality system the manufacturer must implement an internal quality control schedule (IQC-scheme). In this IQC-scheme the following must be demonstrably recorded:

which aspects are inspected by the manufacturer;

according to which methods these inspections are carried out;

how often these inspections are carried out;

how the inspection results are registered and stored.

This IQC-schedule shall be in the format as shown in the annex. The schedule must be detailed in such a way that it provides Kiwa sufficient confidence that requirements will be continuously fulfilled.

4.4 Procedures and work instructions The manufacturer must be able to submit procedures for:

the handling of non-conforming products;

corrective actions in case non-conformities are found;

the handling of complaints regarding the products and / or services supplied;

the work instructions and inspection sheets in use;

instructions for packaging and closing off of products during storage and transport.

4.5 Other Quality system requirements The quality system of the production location shall be ISO 9001 certified. The ISO 9001 quality system may be combined with the IQC scheme.



5 Summary of tests and inspections

This chapter contains a summary of tests and inspections to be carried out during: Initial evaluation:

the investigation necessary in order to determine whether all requirements of the evaluation guideline are fulfilled. Inspection visit:

the surveillance inspections carried out after issue of the certificate in order to determine whether the certified products continuously fulfil the requirements of this evaluation guideline. The inspections are carried out according to the frequency indicated. Inspection of the quality system:

inspection with regard to the correct implementation of the IQC-schedule and procedures.

5.1 Test matrix

Description of requirement

Clause guideline or standard

Test within the scope of

Initial evaluation tests

Surveillance by CI after issue of the certificate

1)

Inspection

2)

Frequency

NEN-EN 1254-2:1998 requirements to be met:

Materials NEN-EN 1254-2 4.2

Declaration

manufacturer X once a year

Dimensions NEN-EN 1254-2 4.3

X X once a year

Design and manufacture NEN-EN 1254-2 4.4

X X once a year

Production test requirements NEN-EN 1254-2 4.5

X

Pressure test bodies with cast microstructure NEN-EN 1254-2 4.5.1

Production

test

Resistance to dezincification NEN-EN 1254-2 4.5.2

Production

test

Type test requirements NEN-EN 1254-2 4.6

X

Leak tightness hydrostatic pressure NEN-EN 1254-2 4.6.1

X X once a year

Resistance to pull-out NEN-EN 1254-2 4.6.2

X

Leak tightness hydrostatic pressure under bending NEN-EN 1254-2 4.6.3

X

Resistance to stress corrosion NEN-EN 1254-2 4.6.4

X



Additional GASTEC QA approval requirements

General

GASTEC QA 35: 2.1

X

Materials GASTEC QA 35: 2.2

X X once a year

Copper/tin alloys GASTEC QA 35: 2.2.1

X X once a year

Construction GASTEC QA 35: 2.3

X once a year

Sealing GASTEC QA 35: 2.3.1

Declaration manufacturer

Connection threads GASTEC QA 35: 2.3.2.1

X X once a year

Capillar soldering GASTEC QA 35: 2.3.2.2

X

Nominal diameter GASTEC QA 35: 2.3.3

X X once a year

Nut across flats GASTEC QA 35: 2.3.4

X

Adopter fittings GASTEC QA 35: 2.3.5

X

Hardness of the compression ring GASTEC QA 35: 2.3.6

X X once a year

Internal support

GASTEC QA 35: 2.3.7

X

X once a year

Leak tightness hydrostatic pressure GASTEC QA 35: 2.4.1

X

Air tightness GASTEC QA 35: 2.4.2

X X once a year

Resistance to pull-out and air pressure GASTEC QA 35: 2.4.3

X

Leak tightness air pressure under bending GASTEC QA 35: 2.4.4

X

Resistance against torsion GASTEC QA 35: 2.4.5

X

Resistance to assembly forces GASTEC QA 35: 2.4.6

X X once a year

Resistance to repeated assembly GASTEC QA 35: 2.4.7

X X once a year

Impact resistance of joint assemblies GASTEC QA 35: 2.4.8

X

Resistance to dynamic loads GASTEC QA 35: 2.4.9

X

Marking and assembly instructions GASTEC QA 35: 3.10

X X once a year

1) In case the product or production process changes significantly, the performance requirements shall be determined

again with respect to paragraph 13 of the “Kiwa regulations for product certification”.

2) All product properties that can be determined within the visiting time (maximum 1 day) are determined by the inspector or by the supplier in the presence of the inspector. In case this is not possible, an agreement will be made between the certification body and the supplier about how the inspection will take place.

5.2 Evaluation of the quality system During each inspection visit the quality system of the supplier shall be examined and evaluated.

5.3 Frequency of external audits The frequency of external audits is set at 2 audits per year at the production location and/or supplier.



6 Agreements on the performance of certification

6.1 General This chapter contains the by the Board of Experts elaborated agreements on the performance of certification by Kiwa.

6.2 Certification staff The staff involved in the certification process is sub-divided into:

Certification engineers: in charge of carrying out the pre-certification tests and assessing the reports of the inspectors;

Inspectors: in charge of carrying out external inspections at the supplier’s works;

Decision-makers: in charge of taking decisions in connection with the pre-certification tests performed, continuing the certification in connection with the inspections performed and taking decisions with regard to corrective actions.

6.3 Qualification requirements for executive staff of CI that fulfil the requirements of NEN-EN 45011:1998 The qualification of the executive staff of a CI must fulfil the requirements of NEN-EN 45011:1998. The way qualification of the staff is performed must be described in the quality manual of the CI.

EN45011

Auditor (A) pre-certification tests and inspections of companies

Inspector (B) factory, field & project visits and follow-up inspections

Decision maker (C) person deciding on granting of certificate

1 Education, general

Relevant tech. thinking and working level comparing to Bachelor Internal training in certification and Kiwa policies Training in audit skills

Tech. thinking and working level at vocational education (intermediate level) Internal training in certification and Kiwa policies Training in audit skills

Thinking and working at Bachelor level (2) Internal training in certification and Kiwa policies Training in audit skills

2 Education, specific

Training geared towards this guideline Specific courses and training (knowledge and skills)

Training geared towards this guideline Specific courses and training (knowledge and skills)

Not applicable

3 Experience, general

1 year of relevant working experience with a minimum of 4 tests of which: 1 complete pre-certification test independently, under supervision

1 year of relevant working experience with a minimum of 4 tests, 1 of which independently, under supervision

4 years of working experience, with a minimum of 1 year of experience with certification

4 Experience, specific

Detailed knowledge of certification and 4 tests relating to this specific guideline or to guidelines which are related to each other

Detailed knowledge of certification and 4 tests relating to the specific guideline or to guidelines which are related to each other

Basic knowledge of the specific certification



6.4 Qualification requirements for executive staff of a CI that are in addition set up by the Board of Experts for the subject of this evaluation guideline No additional requirements are set up by the Board of Experts.

6.5 Qualification Certification staff must be demonstrably qualified by evaluation of education and experience of the above-mentioned requirements. In case qualification takes place on the basis of other criteria, then this has to be recorded in writing. The authority for qualification rests with:

Decision-makers: qualification of the certification experts and inspectors;

Management of the certification body: qualification of the decision-makers.



7 List of referenced documents

7.1 Standards/ normative documents All normative references in this Approval Requirements refer to the editions of the standards as mentioned in the list below. Sorted by number:

NEN-EN 45011:1998 General requirements for bodies operating product certification systems

GASTEC QA Approval Requirements 5:2010

Copper tubes

GASTEC QA Approval Requirements 6:2011

Plumbing fittings with ends for capillar soldering and/or threads connections

NEN-EN 10226-1:2004 Pipe threads where pressure tight joints are made on the treads - Part1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation

NEN-EN 248 : 2002 Sanitary tap ware - General specification for electrodeposited coatings of Ni-Cr

ISO 272:1982 Fasteners -- Hexagon products -- Widths across flats

NEN 1078:2004 Supply for gas with an operation pressure up to and including 500mbar – Performance requirements – new estate

NEN 2078:2001 Requirements for industrial gas installations

NEN-EN 1254-2:1998 Copper and copper alloys – Plumbing fittings – Part 2: Fittings with compression ends for use with copper tubes

NEN-EN-ISO 6507-1:2006

Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks

7.2 Replacement(s) of standard/ normative documents Sorted by number:

Old Document Replaced by Replacement’s title

ISO 1338:1977 - WITHDRAWN NEN-EN 1254-2:1998 NEN-EN 1254-2:1998 Copper and copper alloys –

Plumbing fittings – Part 2: Fittings with compression ends for use with copper tubes



Appendix A:

Model IQC-scheme or frame-IQC-scheme

Subject Aspect Method Frequency Registration

Incoming control supplied materials

Material Compression rings

Material data sheets Material Certificates Dimensions Suppliers Hardness Material Appearance Suppliers

Production process

Cast process Cast products Hot pressing Resistance to dezincification Tooled parts Assemblage

Temperature Material composition Appearance Burrs Tightness body Temperature Appearance Burrs Depth of dezincification Dimension Threads Fit Right parts to the right place lubrication Applied inspection methods Inspection frequency Registration and Recording inspection results



Finished product inspection

Applied inspection methods Inspection frequency Registration and recording inspection results. Appearance Marking Contamination of surfaces Dimensions

Status of measuring and test equipment Measure equipment

List of used measuring and test equipment Calibration and maintenance reports

Logistics Internal transport Storage Package Identification Marking

Procedure non conforming

Registration and Recording Settlement

Complaints procedure

Registration and Recording Settlement



Appendix B

Number Replaces -- Issued Scope KE 35 Report number Page Contract number

Product Certificate

Compression fittings for joining copper pipes

Kiwa Nederland B.V.

Wilmersdorf 50

P.O. Box 137

7300 AC APELDOORN

The Netherlands

Tel.+31- 55 539 33 55 Fax +31- 55 539 36 76

www.kiwa.nl

Company

……….. …………….. ………………. P.O. Box …………… www………….. T F

Based on pre-certification tests as well as periodic inspections by Kiwa Nederland B.V., the products referred to in this certificate and marked with the GASTEC QA mark, supplied by

Manufacturer may, on delivery, be relied upon to comply with the Provisional GASTEC QA Approval Requirements 35, Compression fittings for joining copper pipes. Bouke Meekma Kiwa This certificate is issued by Kiwa Nederland B.V. in conjunction with the “Kiwa Regulations for carrying the GASTEC QA quality mark”. This certificate consists of .. pages. Publication of the certificate is allowed.



Compression fittings for joining copper pipes

PRODUCT SPECIFICATION

APPLICATION AND USE

Compression fittings for joining half-hard copper pipes (R250) or annealed copper tubes (R220) according to GASTEC QA Approval Requirements 5

for application in gas installations with a maximum working pressure of 1bar. This compression fitting for joining copper pipes shall not be used for

copper pipes with a reduced wall thickness. This combination is not tested.

COMPULSORY MARKING

The products are marked with the GASTEC QA word mark or punch mark. This also applies for the internal support.

Manufacturers identity symbol

If practicable nominal diameter and the number and part of this standard

CR or DRA for grade A material, or DRB for grade B material if DZR material is used.

The internal support shall be marked with the diameter x wall thickness

Place of the mark:

To the body and inserts for joining annealed copper pipes

8

Method of marking:

Permanent marking.

RECOMMENDATIONS FOR CUSTOMERS:

1. Check at the time of delivery whether:

1.1 the manufacturer or supplier has delivered in accordance

with the agreement

1.2 the mark and the marking method are correct;

1.3 the products show no visible defects as a result of transport

etc.

2. If you should reject a product on the basis of the above, please

contact:

2.1 Manufacturer

and, if necessary,

2.2 Kiwa Nederland B.V.

3. Consult the producer's processing guidelines for the proper storage

and transport methods.

4. Check whether this certificate is still valid by consulting

Kiwa Nederland BV or the Kiwa website.

Documents

KE 35 GASTEC QA - Kiwa 35 definitief.pdfThese GASTEC QA Approval requirements replace the GASTEC QA Approval Requirements 35, Compression fittings for joining copper pipes, July 2005