Textiles - Determination of pH of aqueous extract (ISO 3071:2020)

This document specifies a method for determining the pH of the aqueous extract of textiles. The method is applicable to textiles in any form (e.g. fibres, yarns, fabrics).

Textilien - Bestimmung des pH des wässrigen Extraktes (ISO 3071:2020)

Dieses Dokument legt ein Verfahren zur Bestimmung des pH Werts des wässrigen Extraktes von Textilien fest. Das Verfahren ist anzuwenden für Textilien jeder Art (z. B. Fasern, Garne, textile Flächengebilde).

Textiles - Détermination du pH de l'extrait aqueux (ISO 3071:2020)

Le présent document spécifie une méthode de détermination du pH de l'extrait aqueux des textiles. Cette méthode est applicable à toutes formes de textiles (par exemple fibres, fils, étoffes).

Tekstilije - Ugotavljanje pH vodnega ekstrakta (ISO 3071:2020)

General Information

Status
Published
Publication Date
11-Feb-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
12-Feb-2020
Completion Date
12-Feb-2020

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SLOVENSKI STANDARD
SIST EN ISO 3071:2020
01-april-2020
Nadomešča:
SIST EN ISO 3071:2006
Tekstilije - Ugotavljanje pH vodnega ekstrakta (ISO 3071:2020)
Textiles - Determination of pH of aqueous extract (ISO 3071:2020)
Textilien - Bestimmung des pH des wässrigen Extraktes (ISO 3071:2020)
Textiles - Détermination du pH de l'extrait aqueux (ISO 3071:2020)
Ta slovenski standard je istoveten z: EN ISO 3071:2020
ICS:
59.080.01 Tekstilije na splošno Textiles in general
SIST EN ISO 3071:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 3071:2020
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SIST EN ISO 3071:2020
EN ISO 3071
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 59.080.01 Supersedes EN ISO 3071:2006
English Version
Textiles - Determination of pH of aqueous extract (ISO
3071:2020)

Textiles - Détermination du pH de l'extrait aqueux (ISO Textilien - Bestimmung des pH des wässrigen

3071:2020) Extraktes (ISO 3071:2020)
This European Standard was approved by CEN on 7 January 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 3071:2020 E

worldwide for CEN national Members.
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SIST EN ISO 3071:2020
EN ISO 3071:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 3071:2020
EN ISO 3071:2020 (E)
European foreword

This document (EN ISO 3071:2020) 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 August 2020, and conflicting national standards shall

be withdrawn at the latest by August 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 supersedes EN ISO 3071:2006.

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 3071:2020 has been approved by CEN as EN ISO 3071:2020 without any modification.

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SIST EN ISO 3071:2020
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SIST EN ISO 3071:2020
INTERNATIONAL ISO
STANDARD 3071
Fourth edition
2020-01
Textiles — Determination of pH of
aqueous extract
Textiles — Détermination du pH de l'extrait aqueux
Reference number
ISO 3071:2020(E)
ISO 2020
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SIST EN ISO 3071:2020
ISO 3071:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
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SIST EN ISO 3071:2020
ISO 3071:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Reagents ........................................................................................................................................................................................................................ 1

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Preparation of test specimens ................................................................................................................................................................ 2

8 Procedure..................................................................................................................................................................................................................... 2

8.1 Preparation of the aqueous extract ....................................................................................................................................... 2

8.2 Measurement of the pH of the aqueous extract .......................................................................................................... 2

9 Calculation .................................................................................................................................................................................................................. 3

10 Precision ....................................................................................................................................................................................................................... 3

11 Test report ................................................................................................................................................................................................................... 3

Annex A (informative) Preparation of standard buffer solutions .......................................................................................... 4

Bibliography ................................................................................................................................................................................................................................ 5

© ISO 2020 – All rights reserved iii
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SIST EN ISO 3071:2020
ISO 3071:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Dir
...

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