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SSH ISO 937:2000

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

Jan 1, 2000
95.99 Withdrawal of Standard   May 23, 2024

General information

95.99     May 23, 2024

DPS

DPS/KT 302

International Standard

67.120.10  

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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

WITHDRAWN
SSH ISO 937:2000
95.99 Withdrawal of Standard
May 23, 2024

REVISED BY

PUBLISHED
SSH ISO 937:2023

Related project

Adopted from ISO 937:1978