标准编号：ISO 12743:2021
中文名称：铜、铅、锌和镍精矿 测定金属和水分含量的取样程序
英文名称：Copper, lead, zinc and nickel concentrates — Sampling procedures for determination of metal and moisture content
发布日期：2021-05
标准范围
This document sets out the basic methods for sampling copper, lead, zinc and nickel concentrates from moving streams and stationary lots, including stopped-belt sampling, to provide samples for chemical analysis, physical testing and determination of moisture content, in accordance with the relevant International Standards. Where the concentrates are susceptible to significant oxidation or decomposition, a common sample that is sufficiently representative, i.e. unbiased and sufficiently precise, is used for moisture determination and chemical analysis to eliminate bias (see ISO 10251). Any large agglomerates (>10 mm) present in the primary sample are crushed prior to further sample processing. Sampling of concentrates in slurry form is specifically excluded from this document.
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