1.1 本规程涵盖了实验室的资质，包括对人员和设备、职责、责任和服务的最低要求，这些实验室用于测定从建筑物和相关结构及其周围采集的油漆、沉降灰尘、空气颗粒物或土壤中的铅或其任何组合。 1.2 本实践是根据指南制定的 E548 和 E994 ，以补充ISO/IEC 17025。 1.3 本规程包含解释性注释，不属于本规程强制性要求的一部分。 1.4 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。 1.5 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。 ====意义和用途====== 4.1 本规程提供了认证机构和其他机构在评估实验室资质时使用的基本标准，这些实验室从事从建筑物和相关结构及其周围提取的油漆、沉降灰尘、空气颗粒物、土壤或其组合中铅的测试。在适当的情况下，本实践中的标准应补充额外的具体标准和要求； 例如，当需要符合联邦、州或地方政府法规时。 4.2 认证针对的是组织而非个人。 4.3 本规程旨在提供实验室测定从建筑物和相关结构及其周围采集的油漆、灰尘、空气颗粒物和土壤中铅所需能力的客观信息。它不用于将一个实验室与另一个实验室进行比较。 4.4 本规程也适用于实验室开发和实施其管理系统，以及根据本规程要求或执行内部设施评估。

1.1 This practice covers the qualifications, including minimum requirements for personnel and equipment, duties, responsibilities, and services of laboratories engaged in the determination of lead in paint, or settled dust, or airborne particulates, or soil, or any combination thereof, taken from and around buildings and related structures. 1.2 This practice has been developed consistent with Guides E548 and E994 , to supplement ISO/IEC 17025. 1.3 This practice contains notes that are explanatory and are not part of the mandatory requirements of the practice. 1.4 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. 1.5 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 practice provides the basic criteria to be used by accreditation bodies and others in evaluating the qualifications of laboratories engaged in the testing of lead in paint, or settled dust, or airborne particulates, or soil, or combination thereof, taken from and around buildings and related structures. The criteria in this practice shall be supplemented by additional specific criteria and requirements, when appropriate; for example, when necessary to be in accordance with federal, state, or local government regulations. 4.2 The accreditation is for organizations and not individuals. 4.3 The practice is intended to provide objective information on the capabilities needed by laboratories to determine lead in paint, dust, airborne particulates, and soil taken from and around buildings and related structures. It is not intended to be used to compare one laboratory with another. 4.4 This practice is also intended for use by laboratories in the development and implementation of their management systems and for use to request or perform an evaluation of in-house facilities in accordance with this practice.