意义和用途

3.1 Since the pipe coating is subject to concentrated pressure exerted by the weight of the pipe and the backfill, this test is mainly used to determine the resistance of the coating to penetration or deformation under controlled conditions.

3.1.1 如果涂层没有被渗透, the deformation of the compressible coating does not indicate a potential defect in the underground burial service. Deformation is not comparable to penetration coating.

ASTM G17-07-2020 “管道涂层抗渗透性的标准测试方法 (钝棒)”

范围

1.1 这种加速试验方法用于测定钢管涂层在规定载荷下对钝棒的穿透或变形的相对抵抗力. This test method is applicable to the test of all kinds of non-metallic pipe coatings under various temperatures.

1.2 The value of three significant decimal places in SI units shall prevail. 括号内的数值仅供参考.

1.3 本标准并非旨在解决所有安全问题, 如果有的话, 与其使用相关. 本标准的使用者有责任建立适当的安全机制, 健康, and environmental practices and to determine the applicability of regulatory restrictions prior to use.

ASTM G17-07-2020 “管道涂层抗渗透性的标准测试方法 (钝棒)”

1.4 This international standard is developed in accordance with the internationally recognized standardization principles established in the decisions on International Standards, 世贸组织发布的技术性贸易壁垒指南和建议原则 (技术性贸易壁垒) 委员会.