Supplementary essential variables shall become mandatory when impact testing is required by design. and when there is a change requalification is required.
Non Essential variables may be revised on WPS, but requalification is not necessary.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ali Asghari
Sent: Sunday, June 13, 2010 10:46 PM
To: materials-welding@googlegroups.com
Subject: [MW:5580] NONESSENTIAL OR SUPPLEMETARY
Dear All
in QW 250-QW280 in ASME sec IX,SOME VARIABLES ARE NON ESSENTIAL & SUPPLEMENTARY IN SAME TIME.e.g in current
WHICH ONE SHALL BE CONSIDERED?HOW INTERPRETED?
REGARD ADVANCES
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