GB/T 14353.15-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of selenium content. 3,3'-diaminobenzidine photometric method (English Version)
This standard specifies the determination methods for copper ore, lead ore, zinc ore, and selenium content. This standard is applicable to the determination of selenium content in copper ore, lead ore and zinc ore, the determination range: 2~500μg/g.
GB/T 14353.15-1993 history
2014GB/T 14353.15-2014 Methods for chemical analysis of copper ores, lead ores and zinc ores.Part 15:Determination of selenium content
1993GB/T 14353.15-1993 Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of selenium content. 3,3'-diaminobenzidine photometric method