EN ISO 3093:2009
Current
The latest, up-to-date edition.
Wheat, rye and their flours, durum wheat and durum wheat semolina - Determination of the falling number according to Hagberg-Perten (ISO 3093:2009)
15-12-2009
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
10 Precision
11 Test report
Annex A (normative) - Equations for altitude correction of
falling numbers
Annex B (informative) - Results of interlaboratory tests
Bibliography
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.
| Committee |
CEN/TC 338
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| BS EN ISO 3093:2009 | Identical |
| NBN EN ISO 3093 : 2010 | Identical |
| UNE-EN ISO 3093:2010 | Identical |
| NS EN ISO 3093 : 2009 | Identical |
| NEN EN ISO 3093 : 2010 | Identical |
| SN EN ISO 3093 : 2010 | Identical |
| DIN EN ISO 3093:2010-05 | Identical |
| I.S. EN ISO 3093:2009 | Identical |
| NF EN ISO 3093 : 2010 | Identical |
| UNI EN ISO 3093 : 2010 | Identical |
| ISO 3093:2009 | Identical |
| PN EN ISO 3093 : 2010 | Identical |
| SS-EN ISO 3093:2010 | Identical |
| ISO 565:1990 | Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings |
| ISO 712:2009 | Cereals and cereal products — Determination of moisture content — Reference method |
| ISO 13690:1999 | Cereals, pulses and milled products Sampling of static batches |
| ISO 8655-2:2002 | Piston-operated volumetric apparatus Part 2: Piston pipettes |
| ISO 5725:1986 | Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
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