ISO 3330:1975
Withdrawn
Ammonium nitrate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
Hardcopy , PDF
English, French
07-01-1975
03-04-2019
Based on dissolution of a test sample in water. Distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red/methylene blue mixed indicator. A typical distillation apparatus is shown in a figure.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NBN T 03 055 : 1979 | Identical |
| BS 4267:1968 | Similar to |
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