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ISO 3705:1976

Sulphur for industrial use -- Determination of arsenic content -- Silver diethyldithiocarbamate photometric method
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ISO 3705:1976

Sulphur for industrial use -- Determination of arsenic content -- Silver diethyldithiocarbamate photometric method

PUBLISH DATE 1976
ISO 3705:1976

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 excess of bromine, carbon tetrachloride and nitric acid.

The analysis is carried out according to ISO 2590. The replacement of some reagents shall be noted.

SDO ISO: International Organization for Standardization
Document Number ISO 3705
Publication Date Sept. 1, 1976
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 47
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