ISO 3705:1976
International Standard
Current Edition
·
Approved on
01 September 1976
Sulphur for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
ISO 3705:1976 Files
English
2 Pages
Current Edition
USD
52.9
ISO 3705:1976 Scope
Applicable to products having As contents equal or more than 0.5 mg/kg. In a well-ventilated cupboard, dissolution of a test portion in carbon tetrachloride. Oxidation of sulphur by bromine and nitric acid. Heating in a boiling water bath to eliminate the exess of bromine, carbon tetrachloride and nitric acid. The analysis is carried out according to ISO 2590. The replacement of some reagents shall be noted.
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