Reference number
ISO 3093:2009
© ISO 2025
International Standard
ISO 3093:2009
Wheat, rye and their flours, durum wheat and durum wheat semolina — Determination of the falling number according to Hagberg-Perten
Edition 4
2009-12
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Published (Edition 4, 2009)
This publication was last reviewed and confirmed in 2019. Therefore this version remains current.

ISO 3093:2009

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Format
CHF 98
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2009-12
    Stage
    : Close of review [90.60]
  • Edition
     : 4
    Number of pages
     : 13
  • Technical Committee :
    ISO/TC 34/SC 4
    ICS :
    67.060 
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