EN ISO 374-4:2019

SLOVENSKI STANDARD
01-januar-2020
Nadomešča:
SIST EN 374-4:2014
Varovalne rokavice za zaščito pred nevarnimi kemikalijami in mikroorganizmi - 4.
del: Ugotavljanje odpornosti proti razkroju zaradi kemikalij (ISO 374-4:2019)
Protective gloves against dangerous chemicals and micro-organisms - Part 4:
Determination of resistance to degradation by chemicals (ISO 374-4:2019)
Schutzhandschuhe gegen Chemikalien und Mikroorganismen - Teil 4: Bestimmung des
Widerstandes gegen Degradation durch Chemikalien (ISO 374-4:2019)
Gants de protection contre les produits chimiques dangereux et les micro-organismes -
Partie 4: Détermination de la résistance à la dégradation par des produits chimiques
(ISO 374-4:2019)
Ta slovenski standard je istoveten z: EN ISO 374-4:2019
ICS:
13.340.40 Varovanje dlani in rok Hand and arm protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 374-4
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 13.340.40 Supersedes EN 374-4:2013
English Version
Protective gloves against dangerous chemicals and micro-
organisms - Part 4: Determination of resistance to
degradation by chemicals (ISO 374-4:2019)
Gants de protection contre les produits chimiques Schutzhandschuhe gegen Chemikalien und
dangereux et les micro-organismes - Partie 4: Mikroorganismen - Teil 4: Bestimmung des
Détermination de la résistance à la dégradation par des Widerstandes gegen Degradation durch Chemikalien
produits chimiques (ISO 374-4:2019) (ISO 374-4:2019)
This European Standard was approved by CEN on 29 September 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 374-4:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 374-4:2019) has been prepared by Technical Committee ISO/TC 94 "Personal
safety - Personal protective equipment" in collaboration with Technical Committee CEN/TC 162
“Protective clothing including hand and arm protection and lifejackets” the secretariat of which is held
by DIN.
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 April 2020, and conflicting national standards shall be
withdrawn at the latest by April 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 374-4:2013.
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 374-4:2019 has been approved by CEN as EN ISO 374-4:2019 without any modification.

INTERNATIONAL ISO
STANDARD 374-4
First edition
2019-10
Protective gloves against dangerous
chemicals and micro-organisms —
Part 4:
Determination of resistance to
degradation by chemicals
Gants de protection contre les produits chimiques dangereux et les
micro-organismes —
Partie 4: Détermination de la résistance à la dégradation par des
produits chimiques
Reference number
ISO 374-4:2019(E)
©
ISO 2019
ISO 374-4:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 374-4:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test principles . 1
5 Test methods, puncture resistance test . 2
5.1 Sampling . 2
5.2 Apparatus . 2
5.3 Procedure . 3
5.3.1 Test conditions. 3
5.3.2 Pre-testing .
measurements. 3
5.3.3 Puncture testing . 4
5.3.4 Expression of results . 4
6 Test report . 5
Annex A (informative) Inter laboratory test on the present test method . 6
Annex B (informative) Weight change test . 7
ISO 374-4:2019(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 Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 94, Personal safety — Protective clothing
and equipment, Subcommittee SC 13, Protective clothing.
This document has been transferred from EN 374-4 without technical changes.
A list of all parts in the ISO 374 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved

INTERNATIONAL STANDARD ISO 374-4:2019(E)
Protective gloves against dangerous chemicals and micro-
organisms —
Part 4:
Determination of resistance to degradation by chemicals
1 Scope
This document specifies the test method for the determination of the resistance of protective glove
materials to degradation by dangerous chemicals with continuous contact.
NOTE Annex A gives information on interlaboratory test results on this method.
It is preferable that other tests used in addition to the evaluation of chemical resistance such as
permeation resistance and penetration, as the chemical test do not provide sufficient information on
the physical property changes affecting a glove during exposure to a chemical. It is necessary that the
outside surface of the glove be exposed to the chemical.
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 edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 374-1, Protective gloves against dangerous chemicals and micro-organisms — Part 1: Terminology and
performance requirements for chemical risks
ISO 21420, Protective gloves — General requirements and test methods
ISO 23388:2018, Protective gloves against mechanical risks
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 374-1 and ISO 21420 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Test principles
The resistance of a protective glove material to degradation by a liquid chemical is determined by
measuring the change in puncture resistance of the glove material after continuous contact of the
external surface with the challenge test chemical. The test is applicable to gloves made of natural or
synthetic polymer. Lined gloves can produce unusable measurement results.
ISO 374-4:2019(E)
5 Test methods, puncture resistance test
5.1 Sa
...