ASTM E2027-2017 金屬、礦石和相關(guān)材料化學(xué)分析能力測驗實(shí)施規程 Standard Practice for Conducting Proficiency Tests in the Chemical Analysis of Metals,Ores,and Related Materials

1.1 This practice provides direction for organizing and conducting proficiency test programs in analytical chemistry for metals, ores, and related materials. It is consistent with ISO/IEC 17043 and Guide E1301. It does not address the selection and use of proficiency testing schemes by accrediting bodies. 1.2 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.