Positive Material Identification

[Dlew]

When does it stand mandatory to perform PMI for the received materials? In all cases of CRA, PMI is required to be applied? Please share the best practices followed.

[octane]

When it comes to mandatory, as per API 578 there are "shall" requirements provided and that is where we have our procedure aligned with.
It mandates that owners establish a written verification program for all types of PMI.
It covers the verification of alloy components within the pressure envelope of piping systems to minimize the potential for catastrophic release of hazardous substances.
Considering all this, we have a practice of performing PMI for alloys on lot basis.
None of the material is considered acceptable before PMI is performed as per our in-house guidelines meeting API 578 requirements.

[Dlew]

Are there any other governing or recommended practices other than API 578 to provide guidelines on performing PMI?
Would help me referencing as I prepare a controlling document.

[ben]

OSHA's Process Safety Management (PSM) standard (29 CFR 1910.119) indirectly drive the need for PMI by emphasizing hazard reduction and safe operating practices. This includes ensuring proper material verification. One of the key component to ensure mechanical integrity.
Our materials & inspection team takes a lot of credit here through instituting their procedure that none of the critically alloyed material at plant has not been accepted & installed without getting documented positive material identification.
Auditors are keen to check the application of this procedure at site during the audits linked to process safety & mechanical integrity.

[Dlew]

Got that, thanks