1.1 本试验方法包括测定0.07至5 mg/m范围内的总收集颗粒物和可提取质量金属加工液气溶胶浓度的程序 3. 在工作环境中。 1.2 该测试方法描述了一种标准化的收集工人暴露信息的方法，该方法可以与现有的暴露数据库进行比较，使用的测试方法也更适用于金属去除液。 1.3 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 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。 1.5 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 本试验方法包括重量测量 4. 工作场所大气中金属去除液气溶胶浓度。 5.2 该试验方法提供了总颗粒物浓度，用于与使用相同技术收集的历史暴露数据库进行比较。 5.3 该试验方法通过添加可提取质量浓度来减少非金属去除流体气溶胶的干扰，从而扩展了当前的非标准化方法。 5.4 该测试方法没有解决金属去除流体类型之间的差异，但它确实包括用广谱溶剂极性提取，以充分去除不溶性背景气溶胶中的许多当前流体配方。 5. 5.5 本试验方法不确定或量化工作场所中可能与金属去除液气溶胶或蒸汽有关的任何特定假定毒素。 5.6 本试验方法不涉及收集过程中或收集后过滤器中半挥发性化合物的损失。

1.1 This test method covers a procedure for the determination of both total collected particulate matter and extractable mass metalworking fluid aerosol concentrations in the range of 0.07 to 5 mg/m 3 in workplace atmospheres. 1.2 This test method describes a standardized means of collecting worker exposure information that can be compared to existing exposure databases, using a test method that is also more specific to metal removal fluids. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 5.1 This test method covers the gravimetric measurement 4 of metal removal fluid aerosol concentrations in workplace atmospheres. 5.2 This test method provides total particulate matter concentrations for comparison with historical exposure databases collected with the same technology. 5.3 This test method provides an extension to current non-standardized methods by adding an extractable mass concentration which reduces interferences from nonmetal removal fluid aerosols. 5.4 This test method does not address differences between metal removal fluid types, but it does include extraction with a broad spectrum of solvent polarity to adequately remove many of the current fluid formulations from insoluble background aerosol. 5 5.5 This test method does not identify or quantify any specific putative toxins in the workplace that can be related to metal removal fluid aerosols or vapors. 5.6 This test method does not address the loss of semivolatile compounds from the filter during or after collection.