International Organization for Standardization (ISO)
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ISO 13658:2000
Scope
This International Standard specifies a hydroxide precipitation and EDTA titrimetric method for the determination of the zinc content of zinc ores and concentrates containing 10 % (m/m) to 60 % (m/m) zinc.
ISO 13658:2000 history
2000ISO 13658:2000 Zinc sulfide concentrates - Determination of zinc content - Hydroxide precipitation and EDTA titrimetric method