Understanding API ICP653 Reading 15-Worksheet-11a

QW-200.4
(b) For GTAW, SMAW, GMAW, PAW, and SAW,
or combinations of these processes, a PQR for a process
recording a test coupon that was at least ½ in. (13 mm)
thick may be combined with one or more other PQRs
recording another welding process and any greater base
metal thickness. In this case, the process recorded on the
first PQR may be used to deposit the root layers using
the process(es) recorded on that PQR up to 2t (for short circuiting
type of GMAW, see QW-404.32) in thickness
on base metal of the maximum thickness qualified by the
other PQR(s) used to support the WPS. The requirements
of Note (1) of tables QW-451.1 and QW-451.2 shall apply.
Charlie Chong/ Fion Zhang