1.1 本指南旨在帮助规范制定者和最终用户评估卫生填埋场日常覆盖材料（称为替代（非土壤）日常覆盖物（ADC））的不同选择。传统的每日封面至少有6英寸。（15 cm）的土壤覆盖在卫生填埋场的工作面上。出于其他原因，替代系统对垃圾填埋作业具有吸引力，以节省垃圾填埋处置空间。 1.2 本指南有助于理解广泛分类的ADC的不同性能特征，并确定不同ADC能够按照美国环境保护局（USEPA）的规定“在不对人类健康和环境造成威胁的情况下控制疾病媒介、火灾、气味、吹扫垃圾和清理”的程度和程度。 1.3 本指南无意提供有关各种ADC的成本信息。作为一个标准指南，它没有规定ADC实践和测试的协议，而是为感兴趣的各方提供了关于许多可用选项的宝贵信息、指导和建议。 1.4 以英寸-磅单位表示的值应视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准值。 1.4.1 例外情况- 公制单位用于 6.2.9.2 . 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《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====== 4.1 本指南提供了监管机构/许可证官员、工程师、废物处理操作员和其他人认为有助于( 1. )理解并区分可用的多种选择( 2. )了解符合EPA垃圾填埋场日常覆盖物规定的性能特征考虑因素，以及( 3. )了解在垃圾填埋场实施这些覆盖物的各种要求和差异。

1.1 This guide is intended to assist specifiers and end users in assessing the different options available for sanitary landfill daily cover materials described as alternative (non-soil) daily covers (ADCs). Traditional daily cover consists of at least 6 in. (15 cm) of soil spread over the working faces of sanitary landfills. Alternative systems are attractive to landfill operations in order to conserve landfill disposal space, among other reasons. 1.2 This guide assists in understanding different performance features of broad classifications of ADCs, and determining the extent and degree to which different ADCs are able to “control disease vectors, fires, odors, blowing litter, and scavenging, without presenting a threat to human health and the environment,” as intended by United States Environmental Protection Agency (USEPA) regulations. 1.3 This guide is not intended to provide cost information regarding the various ADCs. As a standard guide, it does not dictate a protocol for the practice and testing of ADCs, but rather provides valuable information, guidance, and recommendations to interested parties concerning the many options available. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4.1 Exception— Metric units are used in 6.2.9.2 . 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. ====== Significance And Use ====== 4.1 This guide provides information which the regulator/permit officials, engineers, waste disposal operators, and others will find helpful to ( 1 ) understand and distinguish between the many choices available, ( 2 ) understand the performance feature considerations for living up to EPA regulations for landfill daily covers, and ( 3 ) understand the various requirements and differences for putting these covers into practice at landfills.