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ISO 3705:1976

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

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Kehtiv alates 01.09.1976
Tegevusala (ICS grupid)
71.060.10 Keemilised elemendid
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
01.09.1976
Põhitekst
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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