BS ISO 12743-2007
铜、铅、锌和镍精矿.金属和湿度含量测定的取样程序

Copper, lead, zinc and nickel concentrates - Sampling procedures for determination of metal and moisture content

BS ISO 12743-2007 发布历史

This International Standard 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, it is necessary to use a common sample for moisture determination and chemical analysis to eliminate bias (see ISO 10251). In such cases, the common sample must be sufficiently representative, i.e. unbiased and sufficiently precise, for chemical analysis and determination of moisture content. Any large agglomerates (> 10 mm) present in the primary sample should be crushed prior to further sample processing. Sampling of concentrates in slurry form is specifically excluded from this International Standard. Stopped-belt sampling is the reference method for collecting concentrate samples against which mechanical and manual-sampling procedures may be compared. Sampling from moving streams is the preferred method. Both falling-stream and cross-belt samplers are described. Sampling from stationary lots is used only where sampling from moving streams is not possible. The procedures described in this International Standard, for sampling from stationary lots, only minimize some of the systematic sampling errors.

BS ISO 12743-2007由英国标准学会 GB-BSI 发布于 2007-04-30，并于 2007-04-30 实施。

BS ISO 12743-2007 在中国标准分类中归属于: D42 重金属矿，在国际标准分类中归属于: 73.060.99 其他金属矿。

BS ISO 12743-2007的历代版本如下：

• 2007年04月30日 BS ISO 12743-2007 铜、铅、锌和镍精矿.金属和湿度含量测定的取样程序
• 2018年06月12日 BS ISO 12743-2018 铜、铅、锌和镍精矿.金属和湿度含量测定的取样程序
• 2021年05月26日 BS ISO 12743-2021

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标准号

BS ISO 12743-2007

发布日期

2007年04月30日

实施日期

2007年04月30日

废止日期

无

中国标准分类号

D42

国际标准分类号

73.060.99

发布单位

GB-BSI

代替标准

BS ISO 12743-2018

被代替标准

05/30136067 DC-2005

适用范围

This International Standard 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, it is necessary to use a common sample for moisture determination and chemical analysis to eliminate bias (see ISO 10251). In such cases, the common sample must be sufficiently representative, i.e. unbiased and sufficiently precise, for chemical analysis and determination of moisture content. Any large agglomerates (> 10 mm) present in the primary sample should be crushed prior to further sample processing. Sampling of concentrates in slurry form is specifically excluded from this International Standard. Stopped-belt sampling is the reference method for collecting concentrate samples against which mechanical and manual-sampling procedures may be compared. Sampling from moving streams is the preferred method. Both falling-stream and cross-belt samplers are described. Sampling from stationary lots is used only where sampling from moving streams is not possible. The procedures described in this International Standard, for sampling from stationary lots, only minimize some of the systematic sampling errors.