I am working for a test laborotory, we test welders/procedures & supply third party certifying authority (Lloyds / DNV / BV, etc) for testing. Our client is testing welders on C/S pipe using a C/S filler wire to cover for all A1/F6 consumables for the appropriate P number range.
The problem is...
The question is not as specific as it sounds, i know it is allowed to specification, the welder is using an approved WPS/PQR.
The question is ultimately, if the certifying authority deem that the test is not suitable, if the specification allows it, can they refuse to witness/stamp...
If a welder can test using C/S material (P1), and a carbon (F6/A1) filler wire, this qualifies the welder as per ASME IX to weld P8 S/S material using F6 S/S filler wire.
I feel this is not good practice as the welder has not shown ability to clean wire/test piece, maintain temperature, purge...
