DIN EN ISO 3093-2007
小麦、黑麦及其面粉、硬粒小麦和粗粒小麦粉.根据Hagberg-Perten测定降落数值

Wheat, rye and respective flours, durum wheat and durum wheat semolina - Determination of the Falling Number according to Hagberg-Perten (ISO 3093:2004); German version EN ISO 3093:2007

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标准号

DIN EN ISO 3093-2007

发布日期

2007年05月

实施日期

废止日期

无

中国标准分类号

B22

国际标准分类号

67.060

发布单位

DE-DIN

代替标准

DIN EN ISO 3093-2010

适用范围

1.1 This International Standard describes the determination of the a-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 this International Standard 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 a-amylase activity, which can be carried out in accordance with ISO 7973. 1.2 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.