1.1 本规范涵盖了临时淤泥围栏应用中使用的土工织物和相关组件的要求和测试方法。 表1 是基于AASHTO M 288的材料采购规范。 表2 是用于高水流量区域的规范。中的规范 表2 是一种比 表1 . 表2 性能可以承受比中所列规格更多的液压流量 表1 . 这个 表2 规范应适用于敏感应用，例如靠近受管制水域和湿地的区域，但也适用于需要提高结构稳定性的高流量径流区域。设计专业人士可以选择 表2 其中规范列在 表1 不足以满足径流需求。 1.2 这两个规范均适用于将土工布用作垂直渗透拦截器，用于清除地表非集中水流中的悬浮土壤。 临时隔泥栅的功能是捕捉并允许含泥沙水中的土壤颗粒沉降。目的是大大限制施工现场和受径流影响的其他区域侵蚀土壤的运输。 注1: 应注意的是，正确安装和维护对于隔泥栅的有效运行至关重要。 1.3 用于表征拦沙栅的测试旨在确保良好的工艺和质量，鉴于可能的沉积物种类繁多和性能目标，不一定足以达到设计目的。 1.4 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 注2: 虽然 表1 在大多数侵蚀控制应用中，该规范应是可接受的，应注意的是，更高水流速的替代淤泥栅栏规范，见 表2 在易受更高径流影响的地区，工程师可能需要；使用 表2 该规范将最大限度地减少这些区域的安全隐患，如滑水。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。

1.1 This specification covers requirements and test methods for geotextile fabrics and associated components used in temporary silt fence applications. Table 1 is a material purchasing specification based on AASHTO M 288. Table 2 is a specification to be used in areas of high water flow. The specification in Table 2 is a higher strength, higher flow option than Table 1 . Table 2 properties can withstand more hydraulic flow than the specification listed in Table 1 . The Table 2 specification should be used in sensitive applications, such as areas near regulated waters and wetlands, but also areas that are prone to high flow runoff that require increased structural stability. The design professional has the option of Table 2 where the specifications listed in Table 1 are not sufficient to meet the demand of runoff. 1.2 Both specifications are applicable to the use of a geotextile as a vertical permeable interceptor designed to remove suspended soil from overland, nonconcentrated water flow. The function of a temporary silt fence is to trap and allow settlement of soil particles from sediment-laden water. The purpose is to greatly limit the transport of eroded soil from construction sites and other areas affected by water runoff. Note 1: It should be noted that proper installation and maintenance are critical for the effective functioning of silt fence. 1.3 The tests used to characterize the silt fence are intended to ensure good workmanship and quality and are not necessarily adequate for design purposes in view of the wide variety of possible sediments and performance objectives. 1.4 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 nonconformance with the standard. Note 2: Although the Table 1 specification should be acceptable in most erosion control applications, it should be noted that an alternative silt fence specification for a higher water flow rate, listed in Table 2 , may be required by the engineers in areas that are susceptible to higher water runoff; using Table 2 specification will minimize safety hazards such as hydroplaning in these areas. 1.5 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.