GB/T 10322.4-2014 in English

《GB/T 10322.4-2014铁矿石 校核取样偏差的实验方法》由TC317（全国铁矿石与直接还原铁标准化技术委员会）归口，主管部门为中国钢铁工业协会。
当按照ISO3082:2002规定的方法进行取样时,本部分规定的实验方法是以ISO3082:2002的停带取样法作为标准方法来校核铁矿石的取样偏差。
推荐在偏差试验之前进行机械取样系统的检查。
对于一个不完全符合ISO3082:2002的取样系统,通常不希望有偏差。因此,对不符合ISO3082:
2002条件的主要影响有异议时,可做偏差校核实验。如果一方认为在某些特定条件下,偏差可能很大,那么当采用这些条件时,通常也应做偏差试验。
本部分适用于对铁矿石进行校核取样偏差的实验方法。
注:这里描述的实验数据的分析方法,本部分应用于:
a) 以ISO3082:2002样品制备作为标准方法,校核铁矿石样品制备偏差。
b) 以ISO4701 手工筛分法作为标准方法,校核筛分铁矿石粒度分布偏差。
c) 校核从不同的场所,如装货港和卸货港采集同一批量的样品,获得的结果可能有明显的差别。

Scope

When sampling in accordance with the method specified in ISO 3082:2002, the experimental method specified in this section is based on the stop-band sampling method of ISO 3082:2002 as a standard method to check the sampling deviation of iron ore. A check of the mechanical sampling system is recommended prior to deviation testing. For a sampling system that does not fully comply with ISO 3082:2002, deviations are generally undesirable. Therefore, when there is any objection to the main impact that does not meet the conditions of ISO 3082:2002, a deviation checking experiment can be done. If one party believes that under some specific conditions, the deviation may be large, then when using these conditions, the deviation test should usually be done. This section applies to the experimental method for checking the sampling deviation of iron ore.