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ISO 5548:1980

Caseins and caseinates — Determination of lactose content — Photometric method

Oct 1, 1980
95.99   Withdrawal of Standard   Nov 25, 2004

General information

95.99     Nov 25, 2004

ISO

ISO/TC 34/SC 5

International Standard

67.100.99  

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Scope

Specifies a method for determining the lactose and other soluble carbohydrates content of caseins and caseinates containing less than 2.0 % of total soluble carbohydrates. Before precipitation of the casein with acetic acid and sodium acetate solution and subsequent filtration a test portion is dissolved either in hot water in the case of caseinates or in hot water with the addition of sodium hydrogen carbonate in the case of acid caseins or in hot water with the addition of pentasodium triphosphate in the case of rennet casein. The content of total soluble carbohydrates is expressed as anhydrous lactose as a percentage by mass.

Life cycle

NOW

WITHDRAWN
ISO 5548:1980
95.99 Withdrawal of Standard
Nov 25, 2004

REVISED BY

ABANDON
ISO/WD 5548

PUBLISHED
ISO 5548:2004