SSH ISO 5315:1984

Plehrat kimike - Përcaktimi i përmbajtjes së masës tërësore të azotit - Metoda titrimetrike pas distilimit

Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation

Publication date: 31 tet 2011

General information

Current stage: 60.60 Effective date: 31 tet 2011

Originator: DPS

Owner: DPS/KT 47

Type: International Standard

ICS: 65.080

Gjuha: anglisht

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Statusi: Publikuar

PDF - 1 785 Lekë

Paper - 1 785 Lekë

CD - 1 785 Lekë

PDF and Paper - 3 570 Lekë

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The method consists in reducing of nitrate to ammonia by chromium powder in acid medium, converting of organic and urea nitrogen into ammonium sulfate by digestion with concentrated sulfuric acid in the presence of a catalyst, distilling of the ammonia from an alkaline solution and absorbing in an excess of standard volumetric sodium hydroxide solution. The method is not recommended for materials containing more than 7 % of organic matter.

SSH ISO 5315:1984

Plehrat kimike - Përcaktimi i përmbajtjes së masës tërësore të azotit - Metoda titrimetrike pas distilimit

Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation

General information

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Scope

Life cycle

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Related project

Adopted from ISO 5315:1984