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SSH ISO 5506:2001

Soya bean products — Determination of urease activity

Jan 1, 2001
95.99 Withdrawal of Standard   Sep 27, 2024

General information

95.99     Sep 27, 2024

DPS

DPS/KT 307

International Standard

67.200.20     65.120  

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Scope

The method allows inadequate cookingof the products to be detected. It applies to products having a urease activity of less than 1 mg of nitrogen per gram of product as received. For more active products the mass of test may be reduced. The principle consists in mixing of a ground test portion with a buffered urea solution, after keeping the mixture for 30 min at 30 C, neutralization of the ammonia liberated, with an exess of hydrochloric acid solution, and back-titration with standard volumetric hydroxide solution.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH 2159-1:1988

NOW

WITHDRAWN
SSH ISO 5506:2001
95.99 Withdrawal of Standard
Sep 27, 2024

REVISED BY

PUBLISHED
SSH ISO 5506:2018

Related project

Adopted from ISO 5506:1988