1.1 该试验方法是一种指数试验，涵盖了确定铺路织物沥青保持率的程序。铺设沥青覆盖层之前，在路面的织物膜夹层系统中使用铺路织物。 1.2 该测试方法显示了SI单位和英寸磅单位的值。国际单位制是公制单位的名称，称为国际单位制。英寸磅单位是美国惯用单位的正确名称。以英寸为单位的值- 磅单位仅供参考。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 沥青保持率是全宽铺筑物的试验程序。该测试方法的使用是通过提供标准标准和统一报告的基础来确定指标值。 5.2 本程序适用于测试条件试样（见 8.1 ). 所获得的结果可能会有所不同，具体取决于测试所用的沥青水泥类型。除非另有说明，否则使用规范中定义的PG 64-22级 D3381米/D3381米 或同等沥青水泥。 5.3 当需要确定摊铺织物的沥青保留指数时，该程序适用。 5.4 如果买方和卖方有必要使用该测试方法进行验收测试，则应确定买方和卖方实验室之间的统计偏差（如有）。此类比较将基于从正在评估的土工织物样品中随机抽取的样本。

1.1 This test method is an index test that covers a procedure for determining the asphalt retention for paving fabrics. Paving fabrics are used in a fabric membrane interlayer system in pavements before the placement of an asphaltic overlay. 1.2 This test method shows the values in both SI units and inch-pound units. SI units is the name for the system of metric units known as the International System of Units. Inch-pound units is the correct name for the customary units used in the United States. The values in inch-pound units are provided for information only. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 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 ====== 5.1 The asphalt retention is a test procedure for full-width paving fabrics. The use of this test method is to establish an index value by providing standard criteria and a basis for uniform reporting. 5.2 This procedure is applicable for testing conditioned specimens (see 8.1 ). The results obtained may vary, depending on which type of asphalt cement is used for the test. Unless stated otherwise, use Grade PG 64-22 as defined in Specification D3381/D3381M or equivalent asphalt cement. 5.3 This procedure is applicable whenever it is desired to determine an index asphalt retention of paving fabric. 5.4 If it becomes necessary for the purchaser and the seller to use this test method for acceptance testing, the statistical bias, if any, between the purchaser's and seller's laboratories should be determined. Such comparison is to be based on specimens randomly drawn from the sample of geotextile being evaluated.