Chinese Standard: GB/T 30083-2013

Copper,lead and zinc ores and concentrates—Precision and bias of mass measurement techniques

IDT  ISO 12745:2008

全国有色金属标准化技术委员会(SAC/TC 243)

This standard is the original Chinese electronic standard.
After you successfully purchase, we will send the electronic version of this standard to your email address.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.