1.1 本试验方法包括使用石墨炉原子吸收光谱法（GFAAS）测定空气中颗粒物、通过擦拭和微真空吸尘的灰尘、油漆以及建筑物和相关结构中及其周围收集的土壤中的铅（Pb）。 1.2 本测试方法包含样品分析、质量保证（QA）和质量控制（QC）的说明，可用于实验室认证和认证。 1.3 由于合适的GFAAS仪器的不同品牌和型号之间存在差异，因此没有提供详细的操作说明。相反，分析员应遵循特定仪器制造商提供的说明。 1.4 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.4.1 例外 擦拭和微抽真空取样数据所示的SI和英寸磅单位应单独视为擦拭和微真空取样数据的标准。 1.5 本试验方法包含说明性注释，而非本标准强制性要求的一部分。 1.6 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。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 对建筑物和相关结构的铅危害评估或缓解过程中获得的环境（包括工作场所）样本进行分析，以确定关注介质中的铅含量。本试验方法适用于其他ASTM标准（参见 2.1 )涉及在评估或缓解铅危害期间获得的样本（空气中的颗粒物、擦拭和微真空吸尘产生的灰尘、干燥的油漆碎片和土壤）的收集和制备。该测试方法可用于分析从各种环境中采集的样本，如工作场所、建筑物、室内或室外环境、建筑工地、住房等。 5.2 该试验方法也可用于分析其他环境中的类似样品，如使用指南取样的废物的毒性特征提取物 E1908 ，以及使用美国环保局SW-846试验方法1311制备的用于分析的土壤和污泥 ( 5. ) . 5.3 该测试方法可供寻求通过GFAAS进行铅分析认证的实验室使用。

1.1 This test method covers the determination of lead (Pb) in airborne particulate, dust by wipe and micro-vacuuming, paint, and soil collected in and around buildings and related structures using graphite furnace atomic absorption spectrometry (GFAAS). 1.2 This test method contains directions for sample analysis, as well as quality assurance (QA) and quality control (QC), and may be used for purposes of laboratory accreditation and certification. 1.3 No detailed operating instructions are provided because of differences among various makes and models of suitable GFAAS instruments. Instead, the analyst shall follow the instructions provided by the manufacturer of the particular instrument. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4.1 Exception— The SI and inch-pound units shown for wipe and micro-vacuuming sampling data are to be individually regarded as standard for wipe and micro-vacuuming sampling data. 1.5 This test method contains notes which are explanatory and not part of the mandatory requirements of this standard. 1.6 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. 1.7 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 Environmental (including workplace) samples obtained during the assessment or mitigation of lead hazards from buildings and related structures are analyzed to determine lead content in media of concern. This test method is intended for use with other ASTM standards (see 2.1 ) that address the collection and preparation of samples (airborne particulate, dusts by wipe and micro-vacuuming, dried paint chips, and soils) that are obtained during the assessment or mitigation of lead hazards. This test method may be used to analyze samples collected from various environments, such as workplaces, buildings, indoor or outdoor settings, construction sites, housing, and so on. 5.2 This test method may also be used to analyze similar samples from other environments such as toxic characteristic extracts of waste sampled using Guide E1908 , and soil and sludge as prepared for analysis using U.S. EPA SW-846 Test Method 1311 ( 5 ) . 5.3 This test method can be relied upon by laboratories seeking accreditation for lead analysis by means of GFAAS.