1.1 本试验方法用于通过对工作场所空气和表面灰尘取样来测定铍。 1.2 本试验方法假设空气和表面样品是按照适用的ASTM国际标准惯例采集的，用于工作场所空气和表面灰尘的采样。这些样品通常采用空气过滤器取样、真空取样或擦拭技术收集。请参见指南 E1370型 有关空气采样策略的指南，以及指南 D7659号 用于指导表面取样技术的选择。 1.3 土壤中铍的测定不在本试验方法的范围内。参见测试方法 D7458号 用于土壤样品中铍的测定。 1.4 本试验方法包括在弱酸性介质（pH值为1）中提取（溶解）铍的程序 % 氟化氢铵水溶液为4。 8） ，然后使用铍专用光学荧光染料对提取液的小份进行现场分析。 1.5 本程序适用于现场职业和环境卫生监测。该方法也适用于固定地点实验室。 1.6 由于不同品牌和型号的合适荧光仪器之间存在差异，因此未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。本试验方法不涉及不同装置的比较精度，也不涉及同一品牌和型号的仪器之间的精度。 1.7 以国际单位表示的数值视为标准值。 本标准不包括其他计量单位。 1.8 本试验方法包含注释，这些注释是解释性的，不是标准强制性要求的一部分。 1.9 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。 1.10 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 接触铍可能会导致潜在的致命疾病，已经制定了空气和表面铍的职业接触限值，以降低潜在受影响工人的接触风险 ( 4- 7. ) 为了应对与暴露评估和风险降低相关的挑战，需要铍的取样和分析方法。为了便于现场和固定现场实验室测量痕量铍，需要使用取样和分析方法，如本试验方法中所述的程序。铍分析结果可作为暴露评估和人类健康保护的基础。

1.1 This test method is intended for use in the determination of beryllium by sampling workplace air and surface dust. 1.2 This test method assumes that air and surface samples are collected using appropriate and applicable ASTM International standard practices for sampling of workplace air and surface dust. These samples are typically collected using air filter sampling, vacuum sampling or wiping techniques. See Guide E1370 for guidance on air sampling strategies, and Guide D7659 for guidance on selection of surface sampling techniques. 1.3 Determination of beryllium in soil is not within the scope of this test method. See Test Method D7458 for determination of beryllium in soil samples. 1.4 This test method includes a procedure for extraction (dissolution) of beryllium in weakly acidic medium (pH of 1 % aqueous ammonium bifluoride is 4.8), followed by field analysis of aliquots of the extract solution using a beryllium-specific-optically fluorescent dye. 1.5 The procedure is suitable for on-site use in the field for occupational and environmental hygiene monitoring purposes. The method is also applicable for use in fixed-site laboratories. 1.6 No detailed operating instructions are provided because of differences among various makes and models of suitable fluorometric instruments. Instead, the analyst shall follow the instructions provided by the manufacturer of the particular instrument. This test method does not address comparative accuracy of different devices or the precision between instruments of the same make and model. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This test method contains notes that are explanatory and not part of mandatory requirements of the standard. 1.9 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. 1.10 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 Exposure to beryllium can cause a potentially fatal disease, and occupational exposure limits for beryllium in air and on surfaces have been established to reduce exposure risks to potentially affected workers ( 4- 7 ) . Sampling and analytical methods for beryllium are needed in order to meet the challenges relating to exposure assessment and risk reduction. Sampling and analysis methods, such as the procedure described in this test method, are desired in order to facilitate on-site and fixed-site laboratory measurement of trace beryllium. Beryllium analysis results can then be used as a basis for exposure assessment and protection of human health.