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ISO 6635:1984

Fruits, vegetables and derived products — Determination of nitrite and nitrate content — Molecular absorption spectrometric method
1. 11. 1984.

Опште информације

90.93     13. 1. 2022.

ISO

ISO/TC 34/SC 3

Međunarodni standard

67.080.01  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

The method consists in extracting a test portion with hot water, precipitating the protein by addition of solutions of potassium hexacyanoferrate(II) and zinc acetate, and filtrating the precipitate. Further, reduction of the nitrate to nitrite by metallic cadmium (only for determining the nitrate). Then addition of sulfanilamide chloride and N-(1-naphtyl)ethylenediamine and measurement of the red complex obtained at a wavelength of 538 nm.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 6635:1984
90.93 Odluka o potvrđivanju standarda
13. 1. 2022.

REVIDIRAN OD

NAPUŠTEN
ISO/DIS 6635

Nacionalna preuzimanja

SRPS ISO 6635:2011  
ISS

Voće, povrće i proizvodi koji potiču od voća i povrća - Određivanje sadržaja nitrita i nitrata - Metoda molekularno-apsorpcione spektrometrije

90.93   Odluka o potvrđivanju standarda

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