1.1 本规程涵盖了通过重量法和原子吸收分光光度法，使用火试金过程中的废渣和铜，测定含金属矿石、精矿和相关冶金材料火试金的银校正。 1.2 试验方法按以下顺序出现: 小节 重量分析法 10 – 11 原子吸收法 12 – 13 1.3 单位- 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。 1.4 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。 （见实践） E50 和ISO 指导 35:1989.) 1.5 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 这些方法主要用于火试金银测定中银校正的测定。银含量测定采用火试金法，以便买卖双方进行冶金交换。 5.2 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。预计工作将在适当的质量控制实践（如指南中所述）下，在配备适当的实验室中进行 E882 .

1.1 This practice covers the determination of silver corrections for fire assay of metal bearing ores, concentrates, and related metallurgical materials using the spent slags and cupels from the fire assay process, by gravimetry and atomic absorption spectrophotometry. 1.2 The test methods appear in the following order: Sections Gravimetric Method 10 – 11 Atomic Absorption Method 12 – 13 1.3 Units— 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. (See Practices E50 and ISO Guide 35:1989.) 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 These methods are primarily intended to be used for the determination of silver correction in the fire assay silver determination. Silver assays are determined by fire assay for the purpose of metallurgical exchange between seller and buyer. 5.2 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 under appropriate quality control practices such as those described in Guide E882 .