ISO 994:1973
For ISO 994:1973, item title is Potassium hydroxide for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method; status code is 9599; successor is ISO/CD 994; withdrawn / published date is 1973-04-01, recorded from its source on 2026-08-05.
- Identifier
- ISO 994:1973 verified
- Item title
- Potassium hydroxide for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method verified
- Status code
- 9599 verified
- Successor
- ISO/CD 994
- Withdrawn / published date
- 1973-04-01 verified
Verified
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What the source says
5437,IS,,ISO 994:1973,"Potassium hydroxide for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method","Hydroxyde de potassium à usage industriel — Dosage du fer — Méthode photométrique à la 1,10- phénanthroline",1973-04-01,1,['71.060.40'],ISO/TC 47,9599,,[5438],"['en','fr']",2,"<p>Describes a method that is more sensitive and more widely used than the 2,2'-bipyridyl method. It is applicable to products having iron contents equal to or greater than 0.3 mg/kg. The principle is based on the reduction of iron(III) by hydroxylammonium chloride, formation of a iron(II)/1,10-phenanthroline complex in a buffered system. Photometric measurement of the coloured compl
— 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