First a little back ground information. In production (pipe spools to B31.3) I will be using SA-333 GR 6 (P1/G1) / A350 GR LF2 (P1/G2) / SA-420 GR WPL6 (P1/G2) which will be supplied impact tested to -50F. I am looking to limit the number of PQRs so for the procedure testing I am looking to...