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.
|Published (Last):||22 December 2004|
|PDF File Size:||20.96 Mb|
|ePub File Size:||18.43 Mb|
|Price:||Free* [*Free Regsitration Required]|
Dimensions in millimetres Figure 1: The term ”copper” stands for copper and weldable copper 9606-33. The examiner or examining body can stop the test if the welding conditions are not correct or if it appears that the welder does not have the technical competence to comply to the requirements of this standard, e. The format of this Annex A of EN Draft International Standards adopted by the Technical Committees are circulated to member bodies for voting.
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. 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.
ISO 焊工的认可试验.熔焊.铜及铜合金 – MBA智库文档
Macroscopic tests shall be carried out in accordance with EN For undated references the latest edition of the publication referred to applies.
In addition, the requirements for mechanical tests are indicated.
The test pieces shall be welded in accordance with the nominal angles of the isoo according to EN ISO When radiographic testing is used, the inspection length of the weld see figure 7 a and 7 b in the test piece shall be radiographed in the as-welded condition in accordance with EN using class B technique. A welders approval is valid for a period of two years provided that the relevant certificate is confirmed at six months intervals by 9660-3 welding coordinator or the employer, and that all the following conditions are fulfilled: The welding processes referred to in this standard include those fusion welding processes which are designated as manual or partly mechanized welding.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Augustand conflicting national standards shall be withdrawn at the latest by August One root fracture test specimen and one face fracture test specimen shall be tested. Test specimen preparation, types of notch profiles and methods of fracture shall be in accordance with EN 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.
A welder is approved if the imperfections in the test piece are within the specified limits of level B in ENexcept for imperfection types as follows: It does not cover fully mechanized and automatic processes see 5. PA Details of the weld type: Dimensions of test piece for fillet weld s on plate Dimensions in millimetres Figure 3: If the job knowledge test is carried out, it should be recorded on the welder’s certificate. 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.
International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. 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. 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. 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.
Preparation and fracture testing of test specimens for a fillet weld on plate 7.
The macroscopic specimen ido be prepared and etched on one side to clearly reveal the weld see ENpolishing is not required. The welder’s approval test shall be carried out on test pieces and is independent of the type of construction.
The range of approval for each type of test is given in the relevant sub-clauses and tables.
BS EN ISO 9606-3:1999
A test is listed for each of the ranges of plate thickness and pipe wall thickness or pipe diameter as specified in tables 1 and 2. If any of these conditions are not fulfilled, the approval shall be revoked.
Throughout the text of isoo standard, read ” For explanation of abbreviations used in the designation examples, see clause 4.
ISO consists of the following parts, under sio general title Approval testing of welders — Fusion welding: Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. In these tables the range of approval is indicated in the same horizontal line. The welder’s approval test certificate shall be issued at least in one of the official CEN languages English, French, German.
The acceptance requirements for imperfections found by test methods according to this standard shall, unless otherwise specified, be assessed following EN If it is established that failure is attributed to the welder’s lack of skill, the welder shall be regarded as incapable of complying with the requirements of this standard without further training before re-testing.