ISO 3239:1975
For ISO 3239:1975, item title is Sodium sulphate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method; status code is 9599; successor is ISO/CD 3239; withdrawn / published date is 1975-07-01, recorded from its source on 2026-08-05.
- Identifier
- ISO 3239:1975 verified
- Item title
- Sodium sulphate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method verified
- Status code
- 9599 verified
- Successor
- ISO/CD 3239
- Withdrawn / published date
- 1975-07-01 verified
Verified
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What the source says
8451,IS,,ISO 3239:1975,"Sodium sulphate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method","Sulfate de sodium à usage industriel — Dosage du fer — Méthode photométrique à la 1,10- phénanthroline",1975-07-01,1,['71.060.50'],ISO/TC 47,9599,,[8452],"['en','fr']",4,"<p>Applicable to products the Fe content of which is equal to or more than 0.0003 % (m/m). Dissolution of the test sample in delute hydrochloric acid and bromine water by heating. Preliminary reduction of the iron(III) by hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered medium. Photometric measurement of the coloured complex at a wavelength of ab
— 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