GB/T 10322.2-2000
Iron ores-Experimental methods for evaluation of quality variation (English Version)

Standard No.: GB/T 10322.2-2000
Language: Chinese, Available in English version
Release Date: 2000
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 10322.2-2000

Scope: This standard specifies the test methods for assessing quality fluctuations of various types of iron ores, and is applicable to iron ore trade and various sampling and preparation devices. This standard specifies two different methods. The first method is to take sub-samples according to the stratified sampling method or systematic sampling method described in GB/T 10322.1, and then alternately merge and analyze several pairs of sub-samples. The second method is to take and analyze individual incremental samples and then analyze the data using the method of variance. Less work is done with alternating duplicate samples, and the variable method can better estimate quality fluctuations and thus better estimate sampling bias. The variable method is more suitable for precise sampling operations. Note: This test method is generally also suitable for timed sampling if the flow rate is substantially uniform.

GB/T 10322.2-2000 history

2000 GB/T 10322.2-2000 Iron ores-Experimental methods for evaluation of quality variation