ASTM-E1419 › Standard Practice for Examination of Seamless, Gas-Filled, Pressure Vessels Using Acoustic Emission
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1.1 This practice provides guidelines for acoustic emission (AE) examinations of seamless pressure vessels (tubes) of the type used for distribution or storage of industrial gases.
1.2 This practice requires pressurization to a level greater than normal use. Pressurization medium may be gas or liquid.
1.3 This practice does not apply to vessels in cryogenic service.
1.4 The AE measurements are used to detect and locate emission sources. Other nondestructive test (NDT) methods must be used to evaluate the significance of AE sources. Procedures for other NDT techniques are beyond the scope of this practice. See .
Note 1: Shear wave, angle beam ultrasonic examination is commonly used to establish circumferential position and dimensions of flaws that produce AE. Time of Flight Diffraction (TOFD), ultrasonic examination is also commonly used for flaw sizing.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section .
acoustic emission; flaws in steel vessels; gas pressure vessels; seamless gas cylinders; seamless steel cylinders; seamless vessels;; ICS Number Code 23.020.30 (Pressure vessels, gas cylinders)
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Dec. 15, 2015