Asme Section Ix Code Book ((install)) Guide

These are changes that will affect the mechanical properties of the weld. If you change an Essential Variable, you requalify the WPS (i.e., weld a new PQR).

A record demonstrating that a specific welder can produce a sound weld. It remains valid as long as the welder continues to weld using that process without a prolonged break (usually 6 months). 2. Organization of the Book asme section ix code book