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DIN EN ISO 14902:2002-02

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Animal feeding stuffs - Determination of trypsin inhibitor activity of soya products (ISO 14902:2001); English version of DIN EN ISO 14902
Available format(s)

Hardcopy , PDF

Superseded date

29-07-2022

Language(s)

English, German

Published date

01-02-2002

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

Gives a method for the determination of the trypsin inhibitor activity (TIA) of soya products. This trypsin inhibitor activity is indicative of the degree of toasting of these products.

DocumentType
Standard
Pages
16
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Superseded
SupersededBy

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

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