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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BS EN ISO 9606-3:1999
The welder’s approval test shall be carried out on test pieces and is independent of the type of construction. Owing to different training programmes in various countries, it is only proposed to standardize general objectives or categories of job knowledge. The practical test and the examination of job knowledge see Annex 6906-3 shall be designated by ”Accepted” or ”Not tested”. In these tables the range of approval is indicated in the same horizontal line.
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.
ISO – Approval testing of welders — Fusion welding — Part 3: Copper and copper alloys
Fusion welded butt joints in steel plates thicker than 50 mm and up to and including mm in thickness EN If any other form of welder’s approval test certificate is used, it shall contain the information required in Annex A of EN This annex outlines the job knowledge that a welder should have to ensure that procedures are followed and common practices are complied with.
In cases where the majority of production work is fillet welding, the welder shall be approved also by an appropriate fillet welding test; e approval for butt welds in pipes without backing includes approval for branch connections within the same range of approval as in tables 3 to 5.
In addition, the requirements for mechanical tests are indicated. An interruption for a period no longer than six months is permitted; b There is no specific reason to question the welder’s skill and knowledge. The macroscopic specimen shall be prepared and etched on one side to clearly reveal the weld see ENpolishing is not required.
When fracture testing is used, it shall be carried out in accordance with EN For undated references the latest edition of the publication referred to applies. The welding processes referred to in this standard include those fusion welding processes which are designated as manual or partly mechanized welding. This standard is jso when the welder’s approval testing is required by the purchaser, by inspection authorities or by other organizations.
The test pieces isk be marked with the identification of the examiner and 9606–3 welder before welding starts. The type of shielding gas shall not be incorporated in the designation but shall be included in the welder’s approval test certificate see Annex A of EN The number of fracture or transverse bend test specimens depends on the welding position.
BS EN ISO – Approval testing of welders. Fusion welding. Copper and copper alloys
Preparation and fracture testing of test specimens for a fillet weld on pipe When macroscopic examination in accordance with EN is used, at least four test specimens shall be taken equally spaced around the pipe. PA Details of the weld type: Aluminium and aluminium alloys EN If the welder fails any of the prescribed tests, no isl shall be issued.
If the circumference is less than mm, additional weld test pieces will be required. This standard is intended to provide the basis for the mutual recognition by examining bodies for approval relating to welders’ competence in the various fields of application.
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. Draft International Standards adopted by the Technical Committees are circulated to member bodies for voting. In some cases a welder approval test on a branch connection can be necessary.
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.
This standard covers the following welding processes: The test pieces shall be welded in accordance with the nominal angles of the positions according to EN ISO For all other welding positions, two root and two face bend test specimens shall be tested see figure 7 b.
For example in a case where approval is required for a single-side butt joint with the root to be welded by TIG without backing and to be filled by MIGthe welder can be approved by either of the following routes: Preparation and fracture testing of test specimens for a butt weld in plate 7.
The job knowledge indicated in this annex is only isi at the most basic level. This standard covers approval testing of welders for work on semi-finished and finished products made from wrought, forged or cast material types listed in 5. Copper and copper alloys — Part 4: It does not cover fully mechanized and automatic processes see 5. 9606- procedures shall be used for all destructive and non-destructive examinations.
An approval test made on wrought material groups gives approval for cast material and a mixture of cast and wrought material in the same material group see 5.