ISO/R 915:1968
For ISO/R 915:1968, item title is Sulphuric acid and oleum for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method; status code is 9599; successor is ISO/CD 915; withdrawn / published date is 1968-12-01, recorded from its source on 2026-08-05.
- Identifier
- ISO/R 915:1968 verified
- Item title
- Sulphuric acid and oleum for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method verified
- Status code
- 9599 verified
- Successor
- ISO/CD 915
- Withdrawn / published date
- 1968-12-01 verified
Verified
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What the source says
5321,R,,ISO/R 915:1968,"Sulphuric acid and oleum for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method","Acide sulfurique et oléums à usage industriel — Dosage du fer — Méthode spectrophotométrique au 2,2'- bipyridyle",1968-12-01,1,['71.060.30'],ISO/TC 47,9599,,[5320],"['en','fr']",5,"<p>The principle is based on evaporation of the test portion, taking up by means of hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of an iron(II) 2,2'-bipyridyl complex in a buffered medium at a pH value between 4.5 and 6. Spectrophotometric measurement of the coloured complex at a wavelength of about 522 nm. The method is a
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Source
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