1.1 本规程涵盖了在铅危害评估、管理或控制过程中收集的油漆样品的样品制备程序。 1.2 本规程描述了使用热板或微波炉或仪器对要分析铅含量的油漆样品进行消解的程序。 1.3 本规程涵盖了使用热板或微波加热技术（或两者）定量提取干燥油漆样品（散装油漆或油漆粉）中总可回收铅的一般注意事项。 1.4 本规程包含解释性注释，不属于本标准强制性要求的一部分。 1.5 本规程基于NIOSH方法7082和7105，以及EPA油漆中铅的标准操作程序。 1.6 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.7 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。 有关特定警告声明，请参阅 6.1.2 , 6.1.2.1 , 6.1.2.2 , 6.3.2.4 , 8.2.1 和 8.2.2 . 1.8 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 建筑物和相关结构中的油漆需要监测铅含量，以确定潜在的铅危害。 因此，需要有效的方法来制备可能含有铅的油漆样品。 5.2 本规程可用于消化在各种铅危害控制和风险评估活动期间收集的油漆样品，这些活动与建筑物和相关结构内及周围的铅减排有关。这种做法也适用于从商业建筑等场所收集的油漆样品的消化。 5.3 本规程可用于制备已获得的样品，以确保遵守有关涂料中铅含量的法律。 5.4 本规程可用于制备为风险评估目的而采集的样本。 5.5 本规程适用于通过定量分析方法准备用于后续分析的油漆样品。

1.1 This practice covers the sample preparation procedures for paint samples that are collected during the assessment, management or control of lead hazards. 1.2 This practice describes the digestion procedures using a hot plate or microwave oven or apparatus for paint samples that are to be analyzed for lead content. 1.3 This practice covers the general considerations for quantitative sample extraction for total recoverable lead in dried paint samples (either bulk paint or paint powder) using hot plate or microwave heating techniques, or both. 1.4 This practice contains notes that are explanatory and not part of the mandatory requirements of the standard. 1.5 This practice is based on NIOSH Methods 7082 and 7105, and on an EPA standard operating procedure for lead in paint. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 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. For specific warning statements, see 6.1.2 , 6.1.2.1 , 6.1.2.2 , 6.3.2.4 , 8.2.1 , and 8.2.2 . 1.8 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 Paint in buildings and related structures needs to be monitored for lead content in order to determine the potential lead hazard. Hence, effective and efficient methods are required for the preparation of paint samples that may contain lead. 5.2 This practice may be used for the digestion of paint samples that are collected during various lead-hazard control and risk assessment activities associated with lead abatement in and around buildings and related structures. This practice is also suitable for the digestion of paint samples collected from locations such as commercial buildings. 5.3 This practice may be used to prepare samples that have been obtained in order to ensure compliance with laws that govern lead content in paints. 5.4 This practice may be used to prepare samples that have been collected for risk assessment purposes. 5.5 This practice is intended for use with paint samples that are prepared for subsequent analysis by quantitative analytical methods.