Textilfibrer

Kommittébeteckning: SIS/TK 160 (Textil)
Källa: CEN
Svarsdatum: den 1 apr 2019
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This part of ISO 1833 specifies a method, using carbon disulfide/acetone, to determine the mass percentage of chlorofibre, after removal of non-fibrous matter, in textiles made of mixtures of

certain chlorofibres, with

— wool, animal hair, silk, cotton, viscose, cupro, modal, lyocell, polyamide, polyester, elastomultiester, acrylic, melamine, polypropylene, polypropylene/polyamide bicomponent, polyacrylate and glass fibres.

Before carrying out the analysis, the solubility of the chlorofibres in the reagent shall be checked.

When the wool or silk content of a mixture exceeds 25 %, the method described in ISO 1833-4 shall be used.

When the polyamide content of a mixture exceeds 25 %, the method described in ISO 1833-7 shall be used.

It is also possible to analyse mixtures containing chlorofibres by using the test methods described in ISO 1833-13 or ISO 1833-21.

Kommittébeteckning: SIS/TK 160 (Textil)
Källa: CEN
Svarsdatum: den 1 apr 2019
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This part of ISO 1833 specifies a method, using glacial acetic acid, to determine the percentage of acetate, after removal of non-fibrous matter, in textiles made of mixtures of

— acetate

with

— certain chlorofibres or after-chlorinated chlorofibres. It is also possible to analyse mixtures containing acetate by using the test methods described in IS0 1833-3 or ISO 1833-9.

Kommittébeteckning: SIS/TK 160 (Textil)
Källa: CEN
Svarsdatum: den 1 apr 2019
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This document specifies a method, using benzyl alcohol, to determine the mass percentage of acetate, after removal of non-fibrous matter, in textiles made of mixtures of

— acetate

with triacetate, polypropylene, elastolefin, melamine, polypropylene/polyamide bicomponent and polyacrylate fibres.

Kommittébeteckning: SIS/TK 160 (Textil)
Källa: CEN
Svarsdatum: den 15 apr 2019
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This part of ISO 1833 specifies a method, using sulfuric acid, to determine the mass percentage of chlorofibres and certain other fibres, after removal of non-fibrous material, in textiles made of mixtures of

cotton, viscose, cupro, modal, lyocell, acetate, triacetate, polyamide, polyester, elastomultiester, certain acrylic and certain modacrylic fibreswith

chlorofibres based on homopolymers of vinyl chloride, polypropylene, elastolefin, melamine and polypropylene/polyamide bicomponent.

The modacrylics concerned are those which give a limpid solution when immersed in concentrated sulfuric acid (ρ = 1,84 g/ml at 20°C).]

This method can be used, particularly in place of the methods described in ISO 1833-12 and ISO 1833-13, in all cases where a preliminary test shows that the chlorofibres do not dissolve completely either in dimethylformamide or in the azeotropic mixture of carbon disulfide and acetone.

Kommittébeteckning: SIS/TK 160 (Textil)
Källa: CEN
Svarsdatum: den 30 apr 2019
Se merSe mindre
 

This document specifies a method, by determining the nitrogen content, to calculate the proportion of each component, after the removal of non-fibrous matter, in textiles made of mixtures of

— jute

with animal fibres.

The animal-fibre component may consist solely of hair or wool, or of any mixtures of the two.

This part of ISO 1833 is not applicable to products in which dyestuffs or finishes contain nitrogen.

NOTE Because this method differs in principle from the general method based on selective solubility set out in ISO 1833-1, it is given in a form that is complete in itself.