1.1 本规程涵盖了液体、污泥或固体废物中高于环境背景水平或用户定义标准的α、β和γ辐射的筛选。 1.2 本规程旨在作为一种总筛选方法，用于确定液体、污泥或固体废物中是否存在放射性物质。其目的不是取代更复杂的定量分析技术，而是为禁止处理放射性废物的设施提供一种方法，用于快速筛选高于环境背景水平或用户定义标准或两者的样品。 1.3 这种做法可能不适用于现场评估和修复活动等应用。 1.4 以国际单位制表示的数值应视为标准。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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====== 5.1 大多数处理或利用废物的设施都被禁止处理含有放射性物质的废物。本规程为用户提供了一种快速方法，用于根据用户制定的标准在现场或实验室中筛选废料样品，以确定是否存在放射性。这些设施必须能够核实发电机提供的信息，即放射性或混合废物未包含在废物运输中。

1.1 This practice covers the screening for α–, β–, and γ radiation above ambient background levels or user-defined criteria, or both, in liquid, sludge, or solid waste materials. 1.2 This practice is intended to be a gross screening method for determining the presence or absence of radioactive materials in liquid, sludge, or solid waste materials. It is not intended to replace more sophisticated quantitative analytical techniques, but to provide a method for rapidly screening samples for radioactivity above ambient background levels or user-defined criteria, or both, for facilities prohibited from handling radioactive waste. 1.3 This practice may not be suitable for applications such as site assessments and remediation activities. 1.4 The values stated in SI units are to be regarded as the 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 ====== 5.1 Most facilities disposing or utilizing waste materials are prohibited from handling wastes that contain radioactive materials. This practice provides the user a rapid method for screening waste material samples in the field or laboratory for the presence or absence of radioactivity at user-established criteria. It is important to these facilities to be able to verify generator-supplied information that radioactive or mixed wastes have not been included in shipments of waste materials.