Purchase your copy of BS EN ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. A Reference number ISO (E) INTERNATIONAL STANDARD ISO First edition Approval testing of welders. ISO (E). INTERNATIONAL. STANDARD. ISO. First edition. Approval testing of welders — Fusion welding —. Part 3.

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Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

If any of these conditions are not fulfilled, the approval shall be revoked.

ISO 焊工的认可试验.熔焊.铜及铜合金 – MBA智库文档

The welding processes referred to in this standard include those fusion welding processes which are designated as manual or partly mechanized welding. The specimen preparation, types of notch profiles and methods of fracture shall be in accordance with EN The number of fracture or transverse bend test specimens depends on the welding position.

The certificate shall be issued under the sole responsibility of the examiner or examining body and shall contain all the information detailed in Annex A of EN Preparation and fracture testing of test specimens for a butt weld in plate 7.

Aluminium and aluminium alloys — Part 3: It is not intended that thicknesses or diameters should be measured precisely but rather the general philosophy behind the values given in tables 1 and 2 should be applied. For explanation of abbreviations used in the designation examples, see clause 4. When welding parent metals from two different groups which do not give approval to each other according to table 4 see 6.

ISO – Approval testing of welders — Fusion welding — Part 3: Copper and copper alloys

If the welder fails any of the prescribed tests, no certificate shall be issued. Dimensions of test piece for a fillet weld on pipe isl.


The welder’s approval test shall be carried out on test ieo and is independent of the type of construction. This date can be different to the date of issue marked on the certificate. However, some countries can require that the welder undergoes a test of job knowledge.

BS EN ISO 9606-3:1999

In general, a welder’s approval test shall involve depositing weld metal having a chemical composition compatible with any copper in the parent metal group s. For any copper alloy not covered by any of the copper groups the welder shall carry out an approval test, which only approves for that copper. However, it is possible for a welder to be approved for more than one welding process by a single test or by two separate approval tests to be used to cover a multi-process joint.

The term ”copper” stands for copper and weldable copper alloys.

The welding of any one material in a group confers approval on the welder for the welding of all other materials within the same group.

Fusion welded butt joints in steel plates thicker than 50 mm and up to and including mm in thickness EN PA Details of the weld type: The macroscopic specimen shall be prepared and etched on one side to clearly reveal the weld see ENpolishing is not required.

The work of preparing International Standards iwo normally carried out through ISO technical 9606–3. This standard covers the following welding processes: Owing to different training programmes in various countries, it is only proposed to standardize general objectives or categories of job knowledge.

This standard applies to the approval testing of welders for the fusion welding of copper. The welder’s approval test certificate shall be issued at least in one of the official CEN languages English, French, German. The test pieces shall be marked with the identification of the examiner and the welder before welding starts.


The actual questions used should be drawn up by the individual country, but should include questions on areas covered in clause A.

The approval of the examiner or test body shall be obtained. Fusion welded butt joints in steel plates up to 50 mm thick ISO If any other form of welder’s approval test certificate is used, it shall contain the information required in Annex A of EN When required, visual examination can be supplemented by penetrant see EN or other test methods see table 6. A welder isk approved if the imperfections in the test piece are within the 9066-3 limits of level B in ENexcept for imperfection types as follows: When fracture testing is used, it shall be carried out in accordance with EN This annex outlines the job knowledge that a welder should have to ensure that procedures are followed and common practices are complied with.

Nickel and nickel alloys — Part 5: Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.

Material groups according to CR 5.

A minimum weld length of mm is required, but not more than three test pieces. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. A full explanation of these imperfections is given in EN Tests will be carried out in accordance with this sio unless more severe tests are specified by the relevant application standard when these are applied. It does not cover fully 906-3 and automatic processes see 5.