ISO 5178-2019 pdf free.Destructive tests on welds in metallic materials – Longitudinal tensile test on weld metal in fusion welded joints. Each test piece shall be marked in order to identify its exact location in the manufactured product or in the joint from which it has been removed. Each test specimen shall be marked in order to identify its exact location in the test piece from which it has been taken. When removed from the test piece, each test specimen shall be marked. 6.3 Heat treatment and/or ageing No heat treatment shall be applied to the welded joint or to the test specimen unless it is specified or permitted by the relevant application standard dealing with the welded joint to be tested. Details of any heat treatment shall be recorded in the test report. If natural ageing of aluminium alloys takes place, the time between welding and testing shall be recorded. NOTE The presence or hydrogen in ferrous weld metals can adversely affect the test results and suitable hydrogen release treatment. 6.4 Extraction 6.4.1 General The mechanical or thermal processes used to extract the test specimen shall not change the properties of the test specimen in any way. 6.4.2 Steel…