ISO/R 915:1968
Withdrawn
Sulphuric acid and oleum for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method
Hardcopy , PDF
English, French
12-01-1968
03-20-2019
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 applicable to the determination of iron content greater than 1 p.p.m.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| BS 3903:1977 | Similar to |
| NBN T 03 020 : 1979 | Identical |
| NFT 20 253 : 1968 | Similar to |
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.