ISO 3122:1976

Name: ISO 3122:1976
Brand: ISO
SKU: ISO 3122:1976
Price: 81.07 EUR
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Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude borates for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method

Publication date: Apr 1, 1976

95.99 Withdrawal of Standard May 27, 2002

General information

Current stage: 95.99 Withdrawal of Standard May 27, 2002

Originator: ISO

Owner: ISO/TC 47 Chemistry

Type: International Standard

ICS: 71.060.01 Inorganic chemicals in general

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Status: Withdrawn

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Languages: French English

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Scope

Preliminary reduction of the iron(III) by hydroxylammonium chloride, if required, suppression of the interference of tin by oxalic acid. Formation of the coloured iron(III)-2,2'-dipyridyl complex in a buffered medium. Photometric measurement of the coloured complex at a wavelength of about 522 nm.

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WITHDRAWN
ISO 3122:1976
95.99 Withdrawal of Standard
May 27, 2002