1.1 本指南涵盖了可用于评估土工合成粘土衬里粘土部分抵抗因暴露于液体而发生变化的能力的程序和试验方法。这些液体可能来自现场，或在实验室中从现场特定的土壤中生成。 1.2 本指南的范围仅限于短期筛选，并不打算取代测量性能的评估程序，如EPA 9100，试验方法 D6766型 或 另外 适用的ASTM标准。本指南不涉及潮湿的潜在不利影响- 干循环。 1.3 本指南适用于GCL的粘土成分。第节中引用的膨胀指数和流体损失测试 8. 可能不适用于含有聚合物或其他化学处理的粘土。然而，第节中引用的通量测试 9 适用于含有聚合物或其他化学处理的粘土。众所周知，一些人对含有聚合物或其他化学处理的粘土使用膨胀指数或失水程序，或两者兼而有之。然而，使用该标准将被视为对程序的修改，必须如实报告。 合成载体组件按照实践中的描述单独涵盖 D5322电话 . 1.4 以国际单位表示的数值视为标准值。本标准不包括其他计量单位。 1.5 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制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 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。 =====意义和用途====== 4.1 本指南旨在为那些希望研究土工合成粘土衬里粘土部分的化学兼容性以测试液体的人提供一个起点。在本指南的范围内，与试验液体化学相容的土工合成粘土衬垫的粘土部分有望保持其膨胀特性。相反，与试验液体不相容的土工合成粘土衬里的粘土部分可能无法保持其膨胀特性。 如果GCL粘土部分的兼容性存在疑问，则可能需要在预期现场条件下进行额外的液压测试。

1.1 This guide covers procedures and test methods that can be used in the evaluation of the ability of the clay portion of a geosynthetic clay liner to resist change due to exposure to liquids. These liquids may come from a site, or be generated in a laboratory from a site-specific soil. 1.2 The scope of this guide is limited to short-term screening and is not intended to replace evaluation procedures that measure a performance property such as EPA 9100, Test Method D6766 , or other suitable ASTM standards as they become available. This guide does not address potential adverse effects of wet-dry cycling. 1.3 This guide applies to the clay component of a GCL. The swell index and fluid loss tests referenced in Section 8 may not be applicable to clay with polymer or other chemical treatment. However, the flux tests referenced in Section 9 are applicable to clay with polymer or other chemical treatment. It is acknowledged that some use the swell index or fluid loss procedure, or both, on clay with polymer or other chemical treatment. However, such use of the standard would be considered a modification of the procedure and must be reported as such. The synthetic carrier components are covered independently as described in Practice D5322 . 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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 ====== 4.1 This guide is intended as a starting place for those wishing to investigate the chemical compatibility of the clay portion of a geosynthetic clay liner to test liquids. Within the scope of this guide, the clay portion of a geosynthetic clay liner that is chemically compatible with a test liquid may be expected to maintain its swelling characteristics. Conversely, the clay portion of a geosynthetic clay liner that is incompatible with a test liquid may be expected not to maintain its swelling characteristics. In instances where the compatibility of the clay portion of a GCL is questionable, additional hydraulic testing under the expected site conditions may be warranted.