Standard Test Method for Acoustic Emission Testing of Pressurized Containers Made of Fiberglass Reinforced with Balsa Wood Cores
|Publication Date:||10 May 1997|
|ICS Code (Stationary containers and tanks):||23.020.10|
|ICS Code (Noise emitted by machines and equipment):||17.140.20|
1.1 This test method covers guidelines for acoustic emission (AE) tests of pressurized containers made of fiberglass reinforced plastic (FRP) with balsa cores. Containers of this type are commonly used on tank trailers for the transport of hazardous chemicals.
1.2 This test method is limited to cylindrical shape containers, 0.5 to 3 m in diameter, of sandwich construction with balsa wood core and over 30 % glass (by weight) FRP skins. Reinforcing material may be mat, roving, cloth, unidirectional layers, or a combination thereof. There is no restriction with regard to fabrication technique or method of design.
1.3 This test method is limited to containers that are designed for less than 0.520 MPa (75.4 psi) (gage) above static pressure head due to contents.
1.4 This test method does not specify a time interval between tests for re-qualification of a pressure container.
1.5 Containers that operate with a vacuum are not within the scope of this test method.
1.6 Repair procedures are not within the scope of this test method.
1.7 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
1.8 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 8.