CGA C-18:2019

CGA C-18:2019

Methods for Acoustic Emission Requalification of Seamless Steel Compressed Gas Tubes

73,00 €


CGA C-18-2019 provides guidelines for the acoustic emission (AE) testing of certain specification tubes as authorized by special permits and equivalency certificates such as those listed in Appendix A.Two methods of AE testing are addressed: method A and method B. Method A, which is approved in the United States by DOT and in Canada by TC, consists of an AE test performed during pneumatic pressurization to at least 110% of the normal fill pressure or marked service pressure, whichever is greater. This requalification test replaces the water jacket hydrostatic test. Method B, which is approved in Canada, consists of an AE test performed during the hydrostatic proof pressurization to the requalification pressure of the tube.NOTE-Both methods A and B require additional ultrasonic verification of AE indications depending on the operational criteria defined in the applicable special permit or equivalency certificate.

Zusätzliche Information

Autor Compressed Gas Association (CGA)
Veröffentlicht von CGA
Document type Normen
Thema /subgroups/31620
Ausgabe 4
Seitenzahl 13
Ersetzt CGA C-18 (R2012)
Schlagwort CGA C-18