Alcance
This International Standard gives procedures for the use of acoustic emission examination (AT) andultrasonic examination (UT) follow-up during the periodic inspection and testing of seamless steelcylinders and tubes with a water capacity of up to 3 000 l used for compressed and liquefied gases.This examination provides acoustic emission (AE) indications and locations that are evaluated by asecondary examination using UT for a possible flaw in the cylinder or tube. Methods other than UT forthe secondary examination are not covered by this International Standard.This International Standard does not cover composite cylinders.CAUTION — Some of the tests specified in this International Standard involve the use ofprocesses which could lead to a hazardous situation.
