ISO/R 1982:1971
For ISO/R 1982:1971, item title is Nitric acid for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method; status code is 9599; successor is ISO/CD 1982; withdrawn / published date is 1971-05-01, recorded from its source on 2026-08-05.
- Identifier
- ISO/R 1982:1971 verified
- Item title
- Nitric acid for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method verified
- Status code
- 9599 verified
- Successor
- ISO/CD 1982
- Withdrawn / published date
- 1971-05-01 verified
Verified
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What the source says
6714,R,,ISO/R 1982:1971,"Nitric acid for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method","Acide nitrique à usage industriel — Dosage du fer — Méthode photométrique au 2,2'- bipyridyle",1971-05-01,1,['71.060.30'],ISO/TC 47,9599,,[6713],"['en','fr']",4,"<p>The method is applicable to the determination of iron contents greater than 0,0001 % (m/m). The principle consists in evaporation of a test portion, taking up by means of hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of iron(II)-2,2' -dipyridyl complex in ammonium acetate medium. Photometric measurement of the coloured complex at a wavelength of about 522 nm
— isopublicstorageprod.blob.core.windows.net, retrieved 2026-08-05
Source
- isopublicstorageprod.blob.core.windows.nethttps://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv