ISO/R 1595:1970
For ISO/R 1595:1970, item title is Urea for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method; status code is 9599; successor is ISO/CD 1595; withdrawn / published date is 1970-07-01, recorded from its source on 2026-08-05.
- Identifier
- ISO/R 1595:1970 verified
- Item title
- Urea for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method verified
- Status code
- 9599 verified
- Successor
- ISO/CD 1595
- Withdrawn / published date
- 1970-07-01 verified
Verified
Review by
What the source says
6187,R,,ISO/R 1595:1970,"Urea for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method","Urée à usage industriel — Dosage du fer — Méthode photométrique au 2,2'- bipyridyle",1970-07-01,1,['71.080.30'],ISO/TC 47,9599,,[6186],"['en','fr']",3,"<p>Describes a method applicable to iron contents greater than or equal to 0.00005 % (m/m). The principle is based on the ignition of the material at 800 °C and fusion of the residue with anhydrous potassium hydrogen sulphate. Solution of the cooled melt in hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of an iron(II)-2,2'bipyridyl complex in the presence of a buffered solution
— 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