1.1 这些定义适用于ASTM委员会E64标准中的许多术语。 1.2 本术语标准定义了ASTM委员会E64管辖的标准各部分中与雨水控制措施相关的术语。 1.3 单位- 以英寸-磅单位表示的值应被视为标准值，但建立和报告沉积物浓度和粒度的方法除外。通常只描述以mg/L为单位的泥沙浓度，以mm或μ m为单位的粒径，这两个单位都是国际单位制单位。括号中给出的SI单位是数学转换，仅供参考，不被视为标准。以英磅单位以外的单位报告试验结果不应视为不符合本试验方法。1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 3.1 本标准的目的是提供与ASTM委员会E64雨水控制措施(SCM)相关的方法和标准开发中使用的统一术语。

1.1 These definitions apply to many terms found in the standards of ASTM Committee E64. 1.2 This terminology standard defines terms related to stormwater control measures in the various sections of standards under the jurisdiction of ASTM Committee E64. 1.3 Units— The values stated in inch-pound units are to be regarded as standard, except for methods to establish and report sediment concentration and particle size. It is convention to exclusively describe sediment concentration in mg/L and particle size in mm or μm, both of which are SI units. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Reporting of test results in units other than inch-pound units shall not be regarded as non-conformance with this test method. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 3.1 The purpose of this standard is to provide uniform terminology used in the development of methods and standards relating to ASTM Committee E64 on Stormwater Control Measures (SCMs).