BS EN ISO 13585:2012 pdf download.Brazing – Qualification test of brazers and brazing operators.
6 Examination and testing
6.1 Supervision
The brazing of test pieces shall be witnessed by the examiner or examining body. The testing shall be verified by the examiner or examining body.
The test pieces shall be marked with the identification of the examiner and the brazer before brazing starts. The examiner or examining body may stop the test if the brazing conditions are not correct or if it appears that the brazer or brazing operator does not have the skill to fulfil the requirements.
6.2 Brazing conditions
The qualification test of brazers and brazing operators shall follow a pBPS or BPS prepared in accordance with EN 13134. The brazing time for the test piece shall correspond to the working time under usual production conditions.
The brazer or brazing operator shall prepare the parts (e.g. mechanical preparation, cleaning) or accept the preparation, set up the heating means and conduct the necessary verification to carry out the test according to the pBPS or BPS.
NOTE It can be of value to otherwise imitate production conditions for the qualification test as far as possible.
6.3 Test piece
The test piece may be any design of joint which is relevant to the end work. Typically, this is a basic lap or butt joint in sheet material or a sleeve joint in tube (for examples of applicable joint configurations. see Annex C).
NOTE It is possible that requirements concerning test piece design are given in the applicable product standard.
6.4 Assessment of work pieces
When assembling the test piece, the brazer or brazing operator shall assess the work pieces for:
a) joint fit up;
b) joint gap;
C) degree or absence of local deformation;
and is permitted to refuse the test piece components if the brazer or brazing operator considers that these are not in accordance with the written pBPS or BPS.
6.5 Extent of testing
Each test piece shall be tested by visual testing and one or more of the following tests:
a) ultrasonic test;
b) radiographic test;
c) peel test;
d) macroscopic examination;
e) bend test.
6.6 Visual testing
All joints shall be visually examined [see D.1 i)J in accordance with EN 12799; the brazed assembly may need to be cut open to offer an internal examination and the test may therefore be destructive.BS EN ISO 13585 pdf download.