该检查适用于按照相关国际标准规定的方法进行的锰矿和铬矿，无论是天然的还是加工的。包括取样和样品制备的一般条件，取样和样品制备偏差的实验，给出数据分析和审查结果。

The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes general conditions for sampling and preparation of samples and experiments for bias of sampling and of sample preparation, gives a data analysis and reviews results.