EN ISO 17491-4:2008

SLOVENSKI STANDARD
01-december-2008
1DGRPHãþD
SIST EN 468:1996
Varovalna obleka - Preskusne metode za obleke, ki varujejo pred kemikalijami - 4.
del: Ugotavljanje odpornosti materialov proti penetraciji z razprševanjem (spray
test) (ISO 17491-4:2008)
Protective clothing - Test methods for clothing providing protection against chemicals -
Part 4: Determination of resistance to penetration by a spray of liquid (spray test) (ISO
17491-4:2008)
Schutzkleidung - Prüfverfahren für Chemikalienschutzkleidung - Teil 4: Bestimmung der
Beständigkeit gengen das Durchdringen von Flüssigkeitsspray (Spray-Test) (ISO 17491-
4:2008)
Vetements de protection - Méthodes d'essai pour les vetements fournissant une
protection contre les produits chimiques - Partie 4: Détermination de la résistance a la
pénétration par une vaporisation de liquide (essai a la vaporisation) (ISO 17491-4:2008)
Ta slovenski standard je istoveten z: EN ISO 17491-4:2008
ICS:
13.340.10 Varovalna obleka Protective clothing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 17491-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2008
ICS 13.340.10 Supersedes EN 468:1994
English Version
Protective clothing - Test methods for clothing providing
protection against chemicals - Part 4: Determination of
resistance to penetration by a spray of liquid (spray test) (ISO
17491-4:2008)
Vêtements de protection - Méthodes d'essai pour les Schutzkleidung - Prüfverfahren für
vêtements fournissant une protection contre les produits Chemikalienschutzkleidung - Teil 4: Bestimmung der
chimiques - Partie 4: Détermination de la résistance à la Beständigkeit gengen das Durchdringen von
pénétration par vaporisation de liquide (essai au brouillard) Flüssigkeitsspray (Spray-Test) (ISO 17491-4:2008)
(ISO 17491-4:2008)
This European Standard was approved by CEN on 14 August 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17491-4:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Annex ZA (informative) Relationship between this part of ISO 17491 and the Essential
Requirements of EU Directive 89/686/EEC Personal Protective Equipment .4

Foreword
This document (EN ISO 17491-4:2008) has been prepared by Technical Committee CEN/TC 162 "Protective
clothing including hand and arm protection and lifejackets", the secretariat of which is held by DIN, in
collaboration with Technical Committee ISO/TC 94 "Personal safety - Protective clothing and equipment".
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 February 2009, and conflicting national standards shall be withdrawn
at the latest by February 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 468:1994.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Annex ZA
(informative)
Relationship between this part of ISO 17491 and the Essential
Requirements of EU Directive 89/686/EEC Personal Protective Equipment
This part of ISO 17491 has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association to provide one means of conforming to Essential Requirements of the
New Approach Directive 89/686/EEC.

Once this part of ISO 17491 is cited in the Official Journal of the European Communities under that Directive
and has been implemented as a national standard in at least one Member State, compliance with the
normative clauses of this standard, together with the relevant requirements given in the product standards,
confers, within the limits of the scope of both standards, a presumption of conformity with the Essential
Requirements of Directive 89/686/EEC Personal Protective Equipment, Annex II, Clause 3.10.2.

WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within
the scope of this standard.
INTERNATIONAL ISO
STANDARD 17491-4
First edition
2008-08-15
Protective clothing — Test methods for
clothing providing protection against
chemicals —
Part 4:
Determination of resistance to
penetration by a spray of liquid (spray
test)
Vêtements de protection — Méthodes d'essai pour les vêtements
fournissant une protection contre les produits chimiques —
Partie 4: Détermination de la résistance à la pénétration par
vaporisation de liquide (essai au brouillard)

Reference number
ISO 17491-4:2008(E)
©
ISO 2008
ISO 17491-4:2008(E)
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ii © ISO 2008 – All rights reserved

ISO 17491-4:2008(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 17491-4 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 162, Protective clothing including hand and arm protection and lifejackets, in collaboration with
Technical Committee ISO/TC 94, Personal safety — Protective clothing and equipment, Subcommittee SC 13,
Protective clothing, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This first edition of ISO 17491-4, together with ISO 17491-3, cancels and replaces ISO 17491:2002,
Clauses 6 and 7 of which have been technically revised.
ISO 17491 consists of the following parts, under the general title Protective clothing — Test methods for
clothing providing protection against chemicals:
⎯ Part 3: Determination of resistance to penetration by a jet of liquid (jet test)
⎯ Part 4: Determination of resistance to penetration by a spray of liquid (spray test)
The following parts are under development:
⎯ Part 1: Determination of resistance to outward leakage of gases (internal pressure test)
⎯ Part 2: Determination of resistance to inward leakage of aerosols and gases (inward leakage test)
ISO 17491-4:2008(E)
Introduction
This part of ISO 17491 describes a test method for determining the spray penetration resistance of chemical
protective clothing Type 4 (with spray-tight connections between different parts of the clothing and, if
applicable, between the clothing and other items of personal protective equipment) and Type 6 (limited
performance protective clothing).
Such clothing comprises one or more items covering the full surface of the body and is intended to be worn
under conditions where there is a risk of exposure to a spray of a liquid chemical. Other requirements with
regard to this type of clothing and its constituent materials can be found in the respective product standards
(see Bibliography [4]).
Interlaboratory testing has shown that this test method is a repeatable pass/fail method.
A document on the selection, use and maintenance of chemical protective clothing is available
(see Bibliography [5]).
CAUTION — Some of the procedures specified in this part of ISO 17491 involve the use of processes
which could lead to hazardous situations and hence appropriate precautions should be taken.

iv © ISO 2008 – All rights reserved

INTERNATIONAL STANDARD ISO 17491-4:2008(E)

Protective clothing — Test methods for clothing providing
protection against chemicals —
Part 4:
Determination of resistance to penetration by a spray of liquid
(spray test)
1 Scope
This part of ISO 17491 specifies methods for determining the resistance of chemical protective clothing to
penetration by sprays of liquid chemicals at two different levels of intensity:
a) Method A: low-level spray test. This is applicable to clothing that covers the full body surface and is
intended to be worn when there is a potential risk of exposure to small quantities of spray or accidental
low-volume splashes of a liquid chemical.
b) Method B: high-level spray test. This is applicable to clothing with spray-tight connections between
different parts of the clothing and, if applicable, between the clothing and other items of personal
protective equipment, which covers the full body surface and which is intended to be worn when there is a
risk of exposure to sprayed particles of liquid.
This part of ISO 17491 does not address chemical permeation resistance of the materials from which the
chemical protective clothing is made.
2 Normative references
The following referenced documents are indispensable for the application 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/TR 11610, Protective clothing — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 11610 and the following apply.
3.1
connection
assemblage or join
3.2
calibrated stain
fluorescent or visible stain, with a defined minimum area, generated by dropping a specified quantity of test
liquid on to an absorbent overall
NOTE The calibrated stain is used to measure liquid penetration during spray and jet testing of chemical protective
clothing.
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