1.1 这些测试方法包括水中银的原子吸收测定。部分 34 质量控制与这些试验方法有关。三种试验方法如下: 浓度 范围 小节 试验方法A-原子吸收螯合萃取 A. 1至10微克/升 7 – 15 试验方法B-直接原子吸收法 0.1至10毫克/升 16 – 24 试验方法C-原子吸收石墨炉 1至25微克/升 25 – 33 （A） 类似于Brown，E.、Skougstad，M.W.和Fishman，M.J.“溶解矿物和气体水样的收集和分析方法” 美国水资源调查技术。 S、 地质调查 ，第5卷A1章，1970年，第46页。 1.2 以国际单位制表示的数值应视为标准值。括号中给出的值是英寸-磅单位的数学转换，仅供参考，不被视为标准值。 1.3 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。 具体预防说明见 11.5 , 11.12.1 , 13.8 和 22.1 . 1.4 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 银对人体的主要不利影响是美容。它会导致皮肤、眼睛和粘膜的永久性蓝灰色变色。 4.2 相对少量的银具有杀菌或抑菌作用，在游泳池水和游泳点的消毒中使用有限- 使用滤水器。 4.3 ICP-MS或ICP-AES也可能适用，但仪器成本较高。见测试方法 D5673 和 D1976 .

1.1 These test methods cover the atomic absorption determination of silver in water. Section 34 on Quality Control pertains to these test methods. Three test methods are given as follows: Concentration Range Sections Test Method A—Atomic Absorption—Chelation-Extraction A 1 to 10 μg/L 7 – 15 Test Method B—Atomic Absorption—Direct 0.1 to 10 mg/L 16 – 24 Test Method C—Atomic Absorption—Graphite Furnace 1 to 25 μg/L 25 – 33 (A) Similar to that in Brown, E., Skougstad, M. W., and Fishman, M. J., “Methods for Collection and Analysis of Water Samples for Dissolved Minerals and Gases,” Techniques of Water-Resources Investigations of the U.S. Geological Survey , Book 5, Chapter A1, 1970, p. 46. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversion to inch-pound units that are provided for information only and are not considered standard. 1.3 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. Specific precautionary statements are given in 11.5 , 11.12.1 , 13.8 , and 22.1 . 1.4 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 The principal adverse effect of silver in the body is cosmetic. It causes argyria, a permanent, blue-gray discoloration of the skin, eyes, and mucous membranes. 4.2 Relatively small quantities of silver are bactericidal or bacteriostatic and find limited use in both disinfection of swimming pool waters and point-of-use water filters. 4.3 ICP-MS or ICP-AES may also be appropriate but at a higher instrument cost. See Test Methods D5673 and D1976 .