ISO 20920:2018

INTERNATIONAL ISO
STANDARD 20920
First edition
2018-09
Textiles — Man-made fibres —
Determination of dye uptake of cationic
dyeable modified polyester fibres
Textiles — Fibres fabriquées — Détermination de l’absorption des
colorants par les fibres de polyester à pression normale
Reference number
ISO 20920:2018(E)
©
ISO 2018

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ISO 20920:2018(E)

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Published in Switzerland
ii © ISO 2018 – All rights reserved

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ISO 20920:2018(E)

Contents  Page
Foreword .iv
Introduction .v
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4  Principle . 2
5  Reagents and materials . 2
6  Apparatus . 2
7  Test preparation . 2
7.1 Pre-treatment of samples . 2
7.2 Conditioning of samples . 3
7.3 Preparation of dye stock solutions . 3
8  Procedure. 3
9  Calculation and expression of the results . 3
10  Precision of the method . 4
11  Test report . 4
Annex A (informative) Precision experiment. 5
Bibliography .
...