Standardization

Abstract

The growing importance of ultrasonic testing has induced associations for the application of non-destructive testing methods, of manufacturers and consumers, as well as standardizing organizations to publish standards ranging from non-compulsory recommendations to specifications with legal status. In every country state-controlled standardizing commissions are investigating the specifications proposed by the various associations and societies. In the Federal Republic of Germany this is the DNA (Deutscher Normenausschuß). It publishes the DIN standards. On an international scale the ISO (International Organization for Standardization) is making efforts to reconcile and harmonize the standards of the various countries. In addition, similar efforts are being made by international professional associations, e.g. in the field of welding, such as the IIW (International Institute of Welding).