ISO/FDIS 5314
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
| Fecha edición: |
2026-06-01
En Vigor
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| Resumen: | 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. |
| ICS: | 65.080 - Fertilizantes |
| CTN: | ISO/TC 134 - 52376 |
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Anulaciones Normas |
Anula a ISO 5314:1981 |
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