Aerospace series - Non-metallic materials - Textiles - Test method - Determination of conductivity and pH of aqueous extracts

This document specifies the requirements for the determination of conductivity and pH of aqueous extracts of textile materials.
This method has been written in response to an aerospace requirement for a method of extraction using hot water as the EN 1413 requires only a cold water extraction method.

Luft- und Raumfahrt - Nichtmetallische Werkstoffe - Textilien - Prüfverfahren - Bestimmung der Leitfähigkeit und des pH-Werts in wässerigen Lösungen

Dieses Dokument legt die Anforderungen an die Bestimmung der Leitfähigkeit und des pH-Werts wässriger Extrakte von Textilmaterialien fest.
Dieses Verfahren wurde als Reaktion auf eine Anforderung der Luft- und Raumfahrt beschrieben, um ein Extraktionsverfahren mit heißem Wasser festzulegen, da in EN 1413 ausschließlich ein Verfahren mit kaltem Wasser gefordert wird.

Série aérospatiale - Matériaux non-métallique - Textiles - Méthode d'essai - Détermination de la conductivité et du pH des extraits aqueux

Le présent document spécifie les exigences pour la détermination de la conductivité et du pH des extraits aqueux de matériaux textiles.
Cette méthode a été élaborée pour répondre à un besoin de l’industrie aérospatiale d’une méthode d’extraction utilisant de l’eau chaude, étant donné que l’EN 1413 ne nécessite qu’une méthode d’extraction à base d’eau froide.

Aeronavtika - Nekovinski materiali - Tekstilije - Preskusne metode - Določanje prevodnosti in pH vodnih ekstraktov

General Information

Status
Published
Publication Date
25-Feb-2020
Withdrawal Date
30-Aug-2020
Technical Committee
Drafting Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
26-Feb-2020
Completion Date
26-Feb-2020

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 4426:2020
01-maj-2020
Aeronavtika - Nekovinski materiali - Tekstilije - Preskusne metode - Določanje
prevodnosti in pH vodnih ekstraktov

Aerospace series - Non-metallic materials - Textiles - Test method - Determination of

conductivity and pH of aqueous extracts
Luft- und Raumfahrt - Nichtmetallische Werkstoffe - Textilien - Prüfverfahren -
Bestimmung der Leitfähigkeit und des pH-Werts in wässerigen Lösungen
Série aérospatiale - Matériaux non-métalliques - Textiles - Méthode d'essai -
Détermination de la conductivité et du pH des résidus aqueux
Ta slovenski standard je istoveten z: EN 4426:2020
ICS:
49.025.60 Tekstilije Textiles
SIST EN 4426:2020 en,fr,de

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

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SIST EN 4426:2020
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SIST EN 4426:2020
EN 4426
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 49.025.60
English Version
Aerospace series - Non-metallic materials - Textiles - Test
method - Determination of conductivity and pH of aqueous
extracts

Série aérospatiale - Matériaux non-métalliques - Luft- und Raumfahrt - Nichtmetallische Werkstoffe -

Textiles - Méthode d'essai - Détermination de la Textilien - Prüfverfahren - Bestimmung der

conductivité et du pH des extraits aqueux Leitfähigkeit und des pH-Werts in wässerigen

Lösungen
This European Standard was approved by CEN on 8 December 2019.

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 4426:2020 E

worldwide for CEN national Members.
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SIST EN 4426:2020
EN 4426:2020 (E)
Contents Page

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

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Health, safety and environment ................................................................................................................ 5

5 Principle/technique ....................................................................................................................................... 6

6 Resources ........................................................................................................................................................... 6

7 Test samples/test pieces .............................................................................................................................. 6

8 Test procedure ................................................................................................................................................. 7

9 Expression of results...................................................................................................................................... 8

10 Calculation of pH ............................................................................................................................................. 8

11 Measurement uncertainties ........................................................................................................................ 8

12 Designation ....................................................................................................................................................... 8

13 Test report ......................................................................................................................................................... 8

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SIST EN 4426:2020
EN 4426:2020 (E)
European foreword

This document (EN 4426:2020) has been prepared by the Aerospace and Defence Industries Association

of Europe — Standardization (ASD-STAN).

After enquiries and votes carried out in accordance with the rules of this Association, this Standard has

received the approval of the National Associations and the Official Services of the member countries of

ASD, prior to its presentation to CEN.

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.

According to the CEN-CENELEC Internal Regulations, the national standards organisations 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.
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SIST EN 4426:2020
EN 4426:2020 (E)
Introduction

This document is part of the series of EN non-metallic materials standards for aerospace applications.

The general organization of this series is described in EN 4385. This document is a level 3 document as

defined in EN 4385.
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SIST EN 4426:2020
EN 4426:2020 (E)
1 Scope

This document specifies the requirements for the determination of conductivity and pH of aqueous

extracts of textile materials.

This method has been written in response to an aerospace requirement for a method of extraction using

hot water as the EN 1413 requires only a cold water extraction method.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edi
...

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