ISO 1833-3:2020 PDF

Textiles — Quantitative chemical analysis — Part 3: Mixtures of acetate with certain other fibres (method using acetone)

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Title (English):

ISO 1833-3:2020

Textiles — Quantitative chemical analysis — Part 3: Mixtures of acetate with certain other fibres (method using acetone)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 2
Publication date:: November 27, 2020
Edition:: ISO IS 1833 edition 3 version 1
ICS:: 59.060.01

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Description (English):

This document specifies a method, using acetone, to determine the mass percentage of acetate, after removal of non-fibrous matter, in textiles made of mixtures of — acetate with — wool, animal hair, silk, protein, cotton (scoured, kiered, or bleached), flax (or linen), hemp, jute, abaca, alfa, coir, broom, ramie, sisal, cupro, viscose, modal, polyamide, polyester, polypropylene, acrylic, elastolefin, elastomultiester, melamine, polypropylene/polyamide bicomponent, polyacrylate and glass fibres. It is not applicable to mixtures containing modacrylic fibres, certain chlorofibres, nor to mixtures containing acetate fibres that have been deacetylated on the surface.

Technical details

Technical committee: ISO/TC 38 - Textiles
SKU: ISO 1833-3:2020

Abstract

Overview

ISO 1833-3:2020 specifies a standardized acetone extraction method to determine the mass percentage of acetate (after removal of non-fibrous matter) in textiles made from mixtures of acetate and a defined list of other fibres. The method is part of the ISO 1833 series on quantitative chemical analysis and is intended for reliable composition measurement in laboratories and quality-control environments.

Key scope notes:

Applicable to mixtures of acetate with animal, vegetable, regenerated and many synthetic fibres listed in the standard (for example: wool, silk, cotton, flax, viscose, polyester, polyamide, polypropylene, acrylic and glass).
Not applicable to mixtures containing modacrylic fibres, certain chlorofibres, or acetate fibres that have been deacetylated on the surface.
Normative reference: ISO 1833-1 (general principles).

Key Topics

Principle: Acetate is selectively dissolved from a known dry mass of the textile mixture using acetone. The insoluble residue is collected, washed, dried and weighed; the acetate percentage is calculated by difference.
Reagent: Acetone (note: boiling point 56 °C).
Apparatus: Uses the general apparatus of ISO 1833-1 plus a glass-stoppered conical flask (minimum 200 ml).
Test procedure (summary):
- Add 100 ml of acetone per gram of specimen in the conical flask.
- Shake and allow to stand 30 minutes at room temperature with occasional stirring; decant through a weighed filter crucible.
- Repeat two further extractions of 15 minutes each (total acetone exposure = 1 hour).
- Wash residue into the filter crucible with acetone, drain (suction then gravity), dry, cool and weigh.
Calculation: Follow ISO 1833-1 general calculation instructions. The correction factor d = 1.00 except for melamine and polyacrylate where d = 1.01.
Precision: On homogeneous mixtures, confidence limits are within ±1 percentage point at a 95% confidence level.

Applications

Routine laboratory determination of acetate content in blended textiles for incoming inspection and production quality control.
Verification of product composition for labelling, compliance and commercial disputes.
Supporting material characterization in textile R&D when acetate content influences performance or processing.

Related Standards

ISO 1833-1: General principles for quantitative chemical analysis of textiles.
Other parts of the ISO 1833 series cover alternative solvent and separation methods for different fibre combinations.

This standard provides a practical, repeatable acetone-extraction protocol for reliable quantification of acetate in many common textile blends. Users should consult ISO 1833-1 for general procedure details and follow laboratory safety and solvent-handling best practices when working with acetone.

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key scope notes:

Applicable to mixtures of acetate with animal, vegetable, regenerated and many synthetic fibres listed in the standard (for example: wool, silk, cotton, flax, viscose, polyester, polyamide, polypropylene, acrylic and glass).
Not applicable to mixtures containing modacrylic fibres, certain chlorofibres, or acetate fibres that have been deacetylated on the surface.
Normative reference: ISO 1833-1 (general principles).

Key Topics

Principle: Acetate is selectively dissolved from a known dry mass of the textile mixture using acetone. The insoluble residue is collected, washed, dried and weighed; the acetate percentage is calculated by difference.
Reagent: Acetone (note: boiling point 56 °C).
Apparatus: Uses the general apparatus of ISO 1833-1 plus a glass-stoppered conical flask (minimum 200 ml).
Test procedure (summary):
- Add 100 ml of acetone per gram of specimen in the conical flask.
- Shake and allow to stand 30 minutes at room temperature with occasional stirring; decant through a weighed filter crucible.
- Repeat two further extractions of 15 minutes each (total acetone exposure = 1 hour).
- Wash residue into the filter crucible with acetone, drain (suction then gravity), dry, cool and weigh.
Calculation: Follow ISO 1833-1 general calculation instructions. The correction factor d = 1.00 except for melamine and polyacrylate where d = 1.01.
Precision: On homogeneous mixtures, confidence limits are within ±1 percentage point at a 95% confidence level.

Applications

Routine laboratory determination of acetate content in blended textiles for incoming inspection and production quality control.
Verification of product composition for labelling, compliance and commercial disputes.
Supporting material characterization in textile R&D when acetate content influences performance or processing.

Related Standards

ISO 1833-1: General principles for quantitative chemical analysis of textiles.
Other parts of the ISO 1833 series cover alternative solvent and separation methods for different fibre combinations.

ISO 1833-3:2020 PDF

Technical details

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Abstract

Overview

Key Topics

Applications

Related Standards

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