GB/T 27680-2011 (English Version) PDF

Standard No.: GB/T 27680-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 27680-2011

Scope: This standard specifies the experimental method for checking the sampling errors of copper, lead, zinc and nickel concentrates, and the sampling method is in accordance with ISO 12743. The methods specified in this standard can also be used to check for errors in sample handling and to check for significant differences that may exist in the analysis of exchanged samples and batches at different locations (such as loading and unloading points).

GB/T 27680-2011 Referenced Document

ISO 12743 Copper, lead, zinc and nickel concentrates - Sampling procedures for determination of metal and moisture content*， 2021-04-30 Update

2011 GB/T 27680-2011 Copper,lead,zinc and nickel concentrates. Experimental methods for checking the bias of sampling