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Scope

1.1 This test method covers guidelines for acoustic emission (AE) examinations 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 m [20 in.] to 3 m [120 in.] 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 examinations 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 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.

1.8 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.

Keywords

acoustic emission; balsa core; composite pressure vessel; tank trailer; ICS Number Code 17.140.20 (Noise emitted by machines and equipment); 23.020.10 (Stationary containers and tanks)

To find similar documents by ASTM Volume:

03.03 (Nondestructive Testing)

To find similar documents by classification:

17.140.20 (Noise emitted by machines and equipment Standards included in this group shall also be included in other groups and/or sub-groups according to their subject)

23.020.10 (Stationary containers and tanks)

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