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Glavni meni

ISO 937:1978

Meat and meat products — Determination of nitrogen content (Reference method)
1. 12. 1978.
95.99   Povučen   28. 8. 2023.

Опште информације

95.99     28. 8. 2023.

ISO

ISO/TC 34/SC 6

Međunarodni standard

67.120.10  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

TRENUTNO

POVUČEN
ISO 937:1978
95.99 Povučen
28. 8. 2023.

REVIDIRAN OD

OBJAVLJEN
ISO 937:2023

Nacionalna preuzimanja

SRPS ISO 937:1992  
ISS

Meso i proizvodi od mesa - Određivanje sadržaja azota (referentna metoda) (identičan sa ISO 937:1978)

90.92   Odluka o izmeni ili reviziji standarda

E034-6 Saznaj više