ISO 1833-4:2023
(Main)Textiles — Quantitative chemical analysis — Part 4: Mixtures of certain protein fibres with certain other fibres (method using hypochlorite)
Textiles — Quantitative chemical analysis — Part 4: Mixtures of certain protein fibres with certain other fibres (method using hypochlorite)
This document specifies a method, using hypochlorite, to determine the mass percentage of protein fibre, after removal of non-fibrous matter, in textiles made of mixtures of certain non-protein fibres and certain protein fibres, as follows: — wool, other animal-hair (such as cashmere, mohair), silk, protein, with — cotton, cupro, viscose, modal, acrylic, chlorofibres, polyamide, polyester, polypropylene, glass, elastane, elastomultiester, elastolefin, melamine and polypropylene/polyamide bicomponent.
Textiles — Analyse chimique quantitative — Partie 4: Mélanges de certaines fibres protéiniques avec certaines autres fibres (méthode à l'hypochlorite)
Le présent document spécifie une méthode de détermination, à l’hypochlorite, de la masse exprimée en pourcentage de fibres protéiniques, après élimination des matières non fibreuses, dans les textiles composés de mélanges de certaines fibres non protéiniques et de certaines fibres protéiniques, comme suit: — laine, autres poils animaux (par exemple cachemire, mohair), soie, protéines; avec — coton, cupro, viscose, modal, acrylique, chlorofibres, polyamide, polyester, polypropylène, verre textile, élasthanne, élastomultiester, élastoléfine, mélamine et bicomposant polypropylène/polyamide.
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 1833-4
Third edition
2023-09
Textiles — Quantitative chemical
analysis —
Part 4:
Mixtures of certain protein fibres with
certain other fibres (method using
hypochlorite)
Textiles — Analyse chimique quantitative —
Partie 4: Mélanges de certaines fibres protéiniques avec certaines
autres fibres (méthode à l'hypochlorite)
Reference number
© ISO 2023
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Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
7 Test procedure .2
8 Calculation and expression of results . 3
9 Precision . 3
iii
Foreword
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This document was prepared by Technical Committee ISO/TC 38, Textiles in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile
products, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This third edition cancels and replaces the second edition (ISO 1833-4:2017), which has been technically
revised.
The main changes n are as follows:
— in 5.1.2, the instruction for the preparation of the sodium hypochlorite solution has been detailed.
A list of all parts in the ISO 1833 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards b
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