[MW:20496] WPS base metal qualification range

As per Section IX QW 424 for procedure qualification it is given thatt

for base material range of qualification as P15 E metal to P4 metal is
qualified for any metal from P15E to P4 or P3,P1
But P number is an essential variable so what is the actual
interpretation of the above clause

Or does it means if we qualify procedure for P15E +P4 then it is
qualified for the P15E any metal from this group to any metal from
P4,P3 P1 groups

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With Regards
Binoy Lonappan
+91-9645100560
QAC Engineer
TECCL

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