1.1 本试验方法包括通过酸溶银和原子吸收光谱法测定13μg/g至500μg/g范围内的银。铜精矿在以下含量范围内进行国际交易: 要素 单元 内容范围 铝 % 0.05 到 2.50 锑 % 0.0001 到 4.50 砷 % 0.01 到 0.50 钡 % 0.003 到 0.10 铋 % 0.001 到 0.16 镉 % 0.0005 到 0.04 钙 % 0.05 到 4 碳 % 0.10 到 0.90 氯 % 0.001 到 0.006 铬 % 0.0001 到 0.10 钴 % 0.0005 到 0.20 铜 % 10 到 44 氟 % 0.001 到 0.10 金 微克/克 1.40 到 100 铁 % 12 到 30 领导 % 0.01 到 1.40 镁 % 0.02 到 2 锰 % 0.009 到 0.10 水星 微克/克 0.05 到 50 钼 % 0.002 到 0.25 镍 % 0.0001 到 0.08 硅 % 0.40 到 20 银 微克/克 18 到 8000 硫黄 % 10 到 36 锡 % 0.004 到 0.012 锌 % 0.005 到 4.30 1.2 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。 1.3 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。 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====== 5.1 在选矿工业用于含铜矿石的初级冶金过程中，与硫化物矿化有关的铜和银通过浮选过程进行浓缩，以回收金属。 5.2 本试验方法是一种比较方法，旨在作为符合金属含量成分规范或监测过程的参考方法。 5.3 假设所有使用这种方法的人都是经过培训的分析员，能够熟练、安全地执行任务。 预计工作将在配备适当的实验室进行，并遵循适当的废物处理程序。必须遵循适当的质量控制实践，如指南中所述 E882 .

1.1 This test method covers the determination of silver in the range of 13 μg/g to 500 μg/g by acid dissolution of the silver and measurement by atomic absorption spectrometry. Copper concentrates are internationally traded within the following content ranges: Element Unit Content Range Aluminum % 0.05 to 2.50 Antimony % 0.0001 to 4.50 Arsenic % 0.01 to 0.50 Barium % 0.003 to 0.10 Bismuth % 0.001 to 0.16 Cadmium % 0.0005 to 0.04 Calcium % 0.05 to 4.00 Carbon % 0.10 to 0.90 Chlorine % 0.001 to 0.006 Chromium % 0.0001 to 0.10 Cobalt % 0.0005 to 0.20 Copper % 10.0 to 44.0 Fluorine % 0.001 to 0.10 Gold μg/g 1.40 to 100.0 Iron % 12.0 to 30.0 Lead % 0.01 to 1.40 Magnesium % 0.02 to 2.00 Manganese % 0.009 to 0.10 Mercury μg/g 0.05 to 50.0 Molybdenum % 0.002 to 0.25 Nickel % 0.0001 to 0.08 Silicon % 0.40 to 20.0 Silver μg/g 18.0 to 8000 Sulfur % 10.0 to 36.0 Tin % 0.004 to 0.012 Zinc % 0.005 to 4.30 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. 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 ====== 5.1 In the primary metallurgical processes used by the mineral processing industry for copper bearing ores, copper and silver associated with sulfide mineralization are concentrated by the process of flotation for recovery of the metals. 5.2 This test method is a comparative method and is intended to be a referee method for compliance with compositional specifications for metal content or to monitor processes. 5.3 It is assumed that all who use this method will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882 .