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ISO 2590:1973

General method for the determination of arsenic — Silver diethyldithiocarbamate photometric method

May 1, 1973
95.99   Withdrawal of Standard   Oct 3, 2016

General information

95.99     Oct 3, 2016

ISO

ISO/TC 47

International Standard

71.040.40  

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Scope

Applicable to determining the quantities contained either in all the test solution or in the aliquot portion of between 1 g and 20 g that is taken for the determination. The principle bases on the reduction of the arsenic by zinc in a hydrochloric acid medium with the formation of arsine; absorption of the arsine in a solution of silver diethyldithiocarbamate in pyridine. Photometric measurement of the purplish-red colour produced by the colloidally dispersed silver at the maximum of the absorption curve at a wavelength of about 540 nm.

Life cycle

NOW

WITHDRAWN
ISO 2590:1973
95.99 Withdrawal of Standard
Oct 3, 2016

REVISED BY

ABANDON
ISO/CD 2590

National adoptions

General method for the determination of arsenic — Silver diethyldithiocarbamate photometric method

95.99   Withdrawal of Standard

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