Overview
ISO 1833-8:2006 - Textiles: Quantitative chemical analysis - Part 8 defines a laboratory acetone-based method to determine the percentage of acetate in binary textile mixtures of acetate and triacetate fibres. The procedure dissolves acetate fibres in a 70% aqueous acetone solution and quantifies acetate content by weighing the undissolved residue (triacetate) after removal of non‑fibrous matter. Results are calculated following the general principles of ISO 1833-1.
Keywords: ISO 1833-8:2006, acetate triacetate analysis, acetone method, quantitative chemical analysis, textile fibre content.
Key topics and technical requirements
- Scope: Determination of acetate percentage in binary mixtures of acetate and triacetate fibres after removing non‑fibrous matter.
- Principle: Acetate fibres are dissolved in aqueous acetone; undissolved residue (triacetate) is collected, washed, dried and weighed. Acetate content is obtained by difference.
- Reagent: 70% (v/v) aqueous acetone (prepare by diluting 700 ml acetone to 1 L).
- Apparatus:
- Conical (Erlenmeyer) flask, minimum 200 ml, with ground-glass stopper.
- Mechanical agitation device.
- Tarred filtering crucible and standard laboratory drying/weighing equipment.
- Procedure highlights:
- Add 80 ml of 70% acetone per gram of dehydrated sample; shake 1 hour mechanically.
- Decant through the tarred crucible; add 60 ml acetone, agitate by hand, decant - repeat twice.
- Transfer residue to crucible, wash with acetone solution, aspirate, allow gravity flow, final aspiration, dry, cool and weigh.
- Calculations: Follow ISO 1833-1 general instructions; the document specifies a correction value d = 1.01 to be used in result expression.
Applications and users
- Textile testing and quality control laboratories assessing fiber composition and label compliance.
- Manufacturers and suppliers validating raw-material blends for product performance and regulatory requirements.
- Procurement, certification bodies, and forensic textile analysts requiring reproducible, standardized quantitative fibre analysis.
- Useful when differentiating acetate from triacetate content during failure analysis, product specification checks, and compliance testing.
Related standards
- ISO 1833-1 - General principles for quantitative chemical analysis of textiles (required reference).
- Other parts of ISO 1833 series relevant to acetate/triacetate analysis:
- ISO 1833-3 - Acetate with other fibres (acetone method).
- ISO 1833-9 - Acetate/triacetate mixtures (method using benzyl alcohol).
- See the ISO 1833 series for comparable methods for other fibre mixtures.
This standard provides a reproducible, internationally recognized method for accurate determination of acetate content in acetate/triacetate textile blends using the acetone dissolution technique.
Open preview (PDF)Textiles — Quantitative chemical analysis — Part 8: Mixtures of acetate and triacetate fibres (method using acetone)