Ссылочный номер
ISO 3093:2004
© ISO 2024
ISO 3093:2004
Wheat, rye and respective flours, durum wheat and durum wheat semolina — Determination of the Falling Number according to Hagberg-Perten
Версия 3
2004-08
В время отменен
Отозвано (Версия 3, 2004)

Тезис

ISO 3093:2004 describes the determination of the alpha-amylase activity of cereals by the Falling Number method according to Hagberg-Perten.

This method is applicable to cereal grains, in particular to wheat and rye and their respective flours, durum wheat and its semolina. For the purposes of ISO 3093:2004, the term "flour" includes semolina and ground grain (wholemeal), the particle sizes of which are defined.

This method is not applicable for the determination of low levels of alpha-amylase activity, which can be carried out in accordance with ISO 7973.

By converting the Falling Number 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 Falling Number values necessary to produce a sample of a required Falling Number.

Общая информация

  • Текущий статус
     : Отозвано
    Дата публикации
     : 2004-08
    Этап
    : Отмена международного стандарта [95.99]
  • Версия
     : 3
  • Технический комитет :
    ISO/TC 34/SC 4
    ICS :
    67.060 
  • RSS обновления

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