Textiles - Quantitative chemical analysis - Part 29: Mixtures of polyamide with polypropylene/polyamide bicomponent (method using sulfuric acid) (ISO 1833-29:2020)

This document specifies a method, using sulfuric acid, to determine the mass percentage of polyamide, after removal of non-fibrous matter, in textiles made of binary mixtures of
—     polyamide
with
—polypropylene/polyamide bicomponent.

Textilien - Quantitative chemische Analysen - Teil 29: Mischungen aus Polyamid mit Polypropylen/Polyamid-Bikomponente (Verfahren mit Schwefelsäure) (ISO 1833-29:2020)

Dieses Dokument legt ein Schwefelsäure-Verfahren zur Bestimmung des prozentualen Massenanteils an Polyamid, nach dem Abtrennen der nichtfaserigen Begleitstoffe, in Textilien aus binären Fasermischungen aus
- Polyamid
mit
- Polypropylen/Polyamid-Bikomponente
fest.

Textiles - Analyse chimique quantitative - Partie 29: Mélanges de polyamide avec bi composant polypropylene/polyamide (méthode à l’acide sulfurique) (ISO 1833-29:2020)

Le présent document spécifie une méthode de détermination, à l'acide sulfurique, de la masse, exprimée en pourcentage, de polyamide, après élimination des matières non fibreuses, dans les textiles composés de mélanges binaires de:
—          polyamide;
avec
—          bicomposant polypropylène/polyamide.

Tekstilije - Kvantitativna kemična analiza - 29. del: Mešanica poliamida z dvokomponentnim polipropilen/poliamidom (metoda z uporabo žveplene kisline) (ISO 1833-29:2020)

General Information

Status
Published
Public Enquiry End Date
01-Dec-2019
Publication Date
01-Jul-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Jun-2020
Due Date
29-Aug-2020
Completion Date
02-Jul-2020

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SIST EN ISO 1833-29:2020

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Overview

SIST EN ISO 1833-29:2020 specifies a standardized chemical method for quantitatively determining the mass percentage of polyamide in textiles composed of binary mixtures of polyamide and polypropylene/polyamide bicomponent fibers. Using sulfuric acid as the dissolving agent, this method allows for precise separation and quantification of polyamide content after the removal of non-fibrous matter. Implemented in accordance with international textile testing and analysis requirements, this standard supports both product development and quality assurance within the textile industry.

Key Topics

  • Quantitative Chemical Analysis: Focuses on determining the exact mass percentage of polyamide in mixtures with polypropylene/polyamide bicomponent using chemical dissolution.
  • Sulfuric Acid Method: Employs 75% (mass fraction) sulfuric acid to dissolve polyamide fibers from the textile sample, leaving the polypropylene component and allowing for subsequent mass calculation.
  • Sample Preparation: Standard procedures include removal of non-fibrous matter and thorough washing and drying of the residue before weighing.
  • Result Calculation: The mass remaining after chemical treatment is calculated as a proportion of the original dry mass, with the polyamide content taken as the differential value.
  • Precision and Reliability: The method ensures confidence limits of no more than ±1 percentage point at a 95% confidence level for homogeneous textile mixtures.

Applications

Textile manufacturers, quality control laboratories, and research institutions use this standard in the following areas:

  • Carpet Manufacturing: Particularly beneficial where polyamide/polypropylene bicomponent fibers are used, ensuring precise fiber composition in finished products.
  • Quality Assurance and Compliance: Assists companies in verifying fiber content against regulatory and client requirements, reducing risk of non-conformity.
  • Product Development and Research: Facilitates accurate fiber content analysis during the development of new textile materials or blends, supporting innovation and validation.
  • Certification and Accreditation: Laboratories seeking accreditation for chemical analysis of fiber mixtures use this standard to demonstrate methodological competence.

Related Standards

  • ISO 1833-1: Textiles - Quantitative Chemical Analysis - Part 1: General Principles of Testing
    Provides fundamental procedures and calculation methods applicable to all quantitative chemical analyses for textiles.

  • ISO 1833-7: Textiles - Quantitative Chemical Analysis - Part 7
    Addresses analysis of mixtures containing polyamide with certain other fibers using formic acid, but is not suitable for polyamide/ polypropylene/polyamide bicomponent mixtures.

  • ISO 1833-18: Textiles - Quantitative Chemical Analysis - Part 18
    Details analysis involving sulfuric acid for silk with wool or other animal hair. The methodological basis for Part 29 stems from protocols described here.

  • ISO 2076: Textiles - Man-Made Fibres - Generic Names
    Defines terminology for man-made fibers referenced throughout the standard.

Practical Value

Adherence to SIST EN ISO 1833-29:2020 ensures a reliable, reproducible method for the quantitative chemical analysis of polyamide in complex textile mixtures. By standardizing the testing process, textile organizations can ensure product compliance, maintain competitive quality, and meet both customer and regulatory expectations in fiber composition analysis. The use of internationally recognized quantitative chemical analysis procedures bolsters market confidence in the accuracy of fiber content labeling, contributing to higher standards across the textile sector.

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SIST EN ISO 1833-29:2020

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Frequently Asked Questions

SIST EN ISO 1833-29:2020 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Textiles - Quantitative chemical analysis - Part 29: Mixtures of polyamide with polypropylene/polyamide bicomponent (method using sulfuric acid) (ISO 1833-29:2020)". This standard covers: This document specifies a method, using sulfuric acid, to determine the mass percentage of polyamide, after removal of non-fibrous matter, in textiles made of binary mixtures of — polyamide with —polypropylene/polyamide bicomponent.

This document specifies a method, using sulfuric acid, to determine the mass percentage of polyamide, after removal of non-fibrous matter, in textiles made of binary mixtures of — polyamide with —polypropylene/polyamide bicomponent.

SIST EN ISO 1833-29:2020 is classified under the following ICS (International Classification for Standards) categories: 59.060.01 - Textile fibres in general; 71.040.40 - Chemical analysis. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN ISO 1833-29:2020 is associated with the following European legislation: EU Directives/Regulations: 1007/2011; Standardization Mandates: M/532. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

SIST EN ISO 1833-29:2020 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2020
Tekstilije - Kvantitativna kemična analiza - 29. del: Mešanica poliamida z
dvokomponentnim polipropilen/poliamidom (metoda z uporabo žveplene kisline)
(ISO 1833-29:2020)
Textiles - Quantitative chemical analysis - Part 29: Mixtures of polyamide with
polypropylene/polyamide bicomponent (method using sulfuric acid) (ISO 1833-29:2020)
Textilien - Quantitative chemische Analysen - Teil 29: Mischungen aus Polyamid mit
Polypropylen/Polyamid-Bikomponente (Verfahren mit Schwefelsäure) (ISO 1833-
29:2020)
Textiles - Analyse chimique quantitative - Partie 29: Mélanges de polyamide avec bi
composant polypropylene/polyamide (méthode à l’acide sulfurique) (ISO 1833-29:2020)
Ta slovenski standard je istoveten z: EN ISO 1833-29:2020
ICS:
59.060.01 Tekstilna vlakna na splošno Textile fibres in general
71.040.40 Kemijska analiza Chemical analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 1833-29
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 59.060.01
English Version
Textiles - Quantitative chemical analysis - Part 29:
Mixtures of polyamide with polypropylene/polyamide
bicomponent (method using sulfuric acid) (ISO 1833-
29:2020)
Textiles - Analyse chimique quantitative - Partie 29: Textilien - Quantitative chemische Analysen - Teil 29:
Mélanges de polyamide avec bicomposant Mischungen aus Polyamid mit Polypropylen/Polyamid-
polypropylene/polyamide (méthode à l'acide Bikomponente (Verfahren mit Schwefelsäure) (ISO
sulfurique) (ISO 1833-29:2020) 1833-29:2020)
This European Standard was approved by CEN on 22 May 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1833-29:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 1833-29:2020) has been prepared by Technical Committee ISO/TC 38
"Textiles" in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the
secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2020, and conflicting national standards
shall be withdrawn at the latest by December 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 1833-29:2020 has been approved by CEN as EN ISO 1833-29:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 1833-29
First edition
2020-05
Textiles — Quantitative chemical
analysis —
Part 29:
Mixtures of polyamide with
polypropylene/polyamide
bicomponent (method using sulfuric
acid)
Textiles — Analyse chimique quantitative —
Partie 29: Mélanges de polyamide avec bicomposant polypropylène/
polyamide (méthode à l’acide sulfurique)
Reference number
ISO 1833-29:2020(E)
©
ISO 2020
ISO 1833-29:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 1833-29:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 2
6 Apparatus . 2
7 Test procedure . 2
8 Calculation and expression of results . 2
9 Precision .
...