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[MW:15503] PQR based on sec9, but Construction code is B31.4 apply to B31.3 also..?

By Materials & Welding
Dear experts,
 

Our construction code at site is ASME B31.3.

One of our sub contractor, Submitted to us the WPS/PQR for approval (as we are the client to approve).

Since the WPS (new)  states ASME Sec9 + ASME B31.3, but the PQR (old from sub con previous project) states ASME Sec9 + ANSI B31.4,

Hence we are in doubt that whether this PQR supports WPS, with reference to our Construction code ASME B31.3.

Need Your valuable advice with reference to exact code like (QW- XXX para / lines etc.,)
 

Regards,

Sathishkumar. K

QC Welding Inspector.

Daelim, Saudi Arabia.

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