Norm

ISO 2590:1973 en

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

  • Deze norm is ingetrokken sinds 11-10-2016

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 5
Gepubliceerd op 01-05-1973
Taal Engels
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.

Details

ICS-code 71.040.40
Nederlandse titel General method for the determination of arsenic - Silver diethyldithiocarbamate photometric method
Engelse titel General method for the determination of arsenic - Silver diethyldithiocarbamate photometric method

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