Name: EN ISO 14902:2001
Brand: CEN

Animal feeding stuffs - Determination of trypsin inhibitor activity of soya products (ISO 14902:2001)

Published date

15-10-2001

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative reference
3 Term and definition
4 Principle
5 Reagents and materials
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 Number of determinations
   9.2 Sample extraction
   9.3 Dilution of sample extract
   9.4 Measurement of trypsin activity of working
       solution
   9.5 Measurement of trypsin inhibitor activity
10 Calculation
   10.1 Inhibition percentage of sample extract
        solutions
   10.2 Trypsin inhibitor activity
11 Precision
   11.1 Interlaboratory tests
   11.2 Repeatability
   11.3 Reproducibility
12 Test report
Annex A (normative) Dilution scheme for sample
        extract
Annex B (informative) Results of interlaboratory
        test
Bibliography

This International Standard specifies a method for the determination of the trypsin inhibitor activity (TIA) of soyaproducts.This trypsin inhibitor activity is indicative of the degree of toasting of these products.The detection limit of the method is 0,5 mg/g.

Committee	CEN/TC 327
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
NS EN ISO 14902 : 1ED 2002	Identical
ISO 14902:2001	Identical
NF EN ISO 14902 : 2002	Identical
BS EN ISO 14902:2001	Identical
PN EN ISO 14902 : 2005	Identical
NEN EN ISO 14902 : 2001	Identical
NBN EN ISO 14902 : 2001	Identical
UNI EN ISO 14902 : 2004	Identical
SN EN ISO 14902 : 2001	Identical
UNE-EN ISO 14902:2002	Identical
I.S. EN ISO 14902:2002	Identical
DIN EN ISO 14902:2002-02	Identical

ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 6497:2002	Animal feeding stuffs Sampling
ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 6498:2012	Animal feeding stuffs — Guidelines for sample preparation
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods