ASTM E2296-21 通过火试金熔渣回收和防铜重量分析法对含金属矿石、精矿和相关冶金材料中的银进行校正的标准实施规程.pdf

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 Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:E2296-21 INTERNATIONAL Standard Practice for Silver Corrections in Metal Bearing Ores Concentrates and Related Metallurgical Materials by Fire Assay Slag Recycling and Cupel Proof Gravimetry' This standard is issued under the fixed designation E2296:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superseript epsilon (e)indicates an editorial change since the last revision or reapproval. 1.Scope E882 Guide for Accountability and Quality Control in the 1.1 This practice covers the silver loss correction utilizing Chemical Analysis Laboratory slag recycling and cupellation of proof silver during the fire 2.2 ISO Documents:3 assay of metal bearing ores concentrates and related metal- ISO 35:2006 Certification of Reference Materials-General lurgical materials. and Statistical Principles 1.2 Units-The values stated in SI units are to be regarded ISO 10378:2016 Copper Sulfide Concentrates- as standard.No other units of measurement are included in this Determination of Gold and Silver Contents-Fire Assay s...