CGA C-18
- Methods for Acoustic Emission Requalification of Seamless Steel Compressed Gas Tubes
- standard by Compressed Gas Association, 05/17/2019
- Category: CGA
$56.00
$28.00
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.
All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.
After purchasing, you have the ability to assign each license to a specific user.
At any time, you are permitted to make printed copies for your and your members' reference use.