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.
| CSA Group | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | ISO 3705:1976 |
| Product Name | Sulphur for industrial use - Determination of arsenic content - Silver diethyldithiocarbamate photometric method |
