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ISO 3093:2009

Wheat, rye and their flours, durum wheat and durum wheat semolina — Determination of the falling number according to Hagberg-Perten ISO 3093:2009

Publication date:   Nov 30, 2009

General information

90.60 Close of review   Mar 5, 2025

ISO

ISO/TC 34/SC 4 Cereals and pulses

International Standard

67.060   Cereals, pulses and derived products

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Scope

ISO 3092:2009 specifies the determination of the alpha-amylase activity of cereals by the falling number (FN) method according to Hagberg-Perten.
This method is applicable to cereal grains, in particular to wheat and rye and their flours, durum wheat and its semolina.
This method is not applicable to the determination of low levels of alpha-amylase activity.
By converting the FN into a liquefaction number (LN), it is possible to use this method to estimate the composition of mixtures of grain, flour or semolina with known FNs necessary to produce a sample of a required FN.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3093:2004

WITHDRAWN
ISO 3093:2004/Cor 1:2008

NOW

PUBLISHED
ISO 3093:2009
90.60 Close of review
Mar 5, 2025