ISO 5314:1981
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
OVERVIEW
The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydroxide solution. It is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1981 |
| No. of Pages | 4 |
| ICS Classification | 65.080 Fertilizers |
| Committee | ISO/TC 134 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |