Page 137 - Quick Guide to Welding and Weld Inspection by S.E. Hughes, Clifford Matthews
P. 137

Codes, Standards and Documentation







































                       Figure 8.3 WPQ form (ASME IX)

            be determined and recorded on the WPS. Again, the ranges
            will be specified by the code.

            Non-essential variables
            Non-essential variables are those that do not affect the
            mechanical or metallurgical properties of a weldment. If
            changed outside their qualified range a new procedure will

                                  121


               Woodhead Publishing Ltd – A Quick Guide to Welding and Weld Inspection
            Data Standards Ltd, Frome, Somerset – 17/9/200908QG Welding chap8.3d Page 121 of 124
   132   133   134   135   136   137   138   139   140   141   142