ISO 937:1978

Meat and meat products — Determination of nitrogen content (Reference method)

Publication date: 1 dhj 1978

General information

Current stage: 90.92 Effective date: 26 shk 2021

Originator: ISO

Owner: ISO/TC 34/SC 6

Type: International Standard

ICS: 67.120.10

Gjuha: frëngjisht anglisht

Buying

Statusi: Publikuar

PDF - 4 297 Lekë

Paper - 4 297 Lekë

CD - 4 297 Lekë

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Scope

The method consists in digesting of a test portion with concentrated sulphuric acid, using copper(II) sulphate as a catalyst, to convert organic nitrogen to ammonia ions. Then alkalisation, distillation of the liberated ammonia into an excess of boric acid solution, titration with hydrochloric acid to determine the ammonia bound by the boric acid, and calculation of nitrogen content of the sample from the amount of ammonia produced.

Life cycle

NOW

PUBLISHED
ISO 937:1978
90.92 Standard to be revised
26 shk 2021

REVISED BY

IN_DEVELOPMENT
ISO/WD 937

National adoptions

SSH ISO 937:2000

DPS

Mish dhe produkte mishi. Përcaktimi i përmbajtjes së azotit(Metodë referimi).

60.60 Standard published

DPS/KT 302 më tepër

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