ISO 6739:1988

Whey cheese — Determination of nitrate and nitrite contents — Method by cadmium reduction and spectrometry

95.99 Withdrawal of Standard Nov 1, 2001

General information

Current stage: 95.99 Effective date: Nov 1, 2001

Originator: ISO

Owner: ISO/TC 34/SC 5

Type: International Standard

ICS: 67.100.30

Scope

Is suitable for all kinds of whey cheese. The principle of determination consists in extracting the whey cheese with warm water, precipitating the fat and proteins, filtering and reducing the nitrate in a portion of the filtrate to nitrite by means of copperized cadmium. The apparatus for nitrate reduction is shown in a figure.

Life cycle

PREVIOUSLY

Revises
ISO 6739:1982

NOW

WITHDRAWN
ISO 6739:1988
95.99 Withdrawal of Standard
Nov 1, 2001

REVISED BY

WITHDRAWN
ISO 14673-1:2001

WITHDRAWN
ISO 14673-2:2001

WITHDRAWN
ISO 14673-3:2001

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