Protective gloves - General requirements and test methods (ISO 21420:2020)

This standard defines the general requirements and relevant test procedures for glove design and construction, resistance of glove materials to water penetration, innocuousness, comfort and efficiency, marking and information supplied by the manufacturer applicable to all protective gloves.
NOTE   It can also be applicable to arm protectors and gloves permanently incorporated in containment enclosures.
This European Standard does not address the protective properties of gloves and therefore should not be used alone but only in combination with the appropriate specific European Standard(s).
A non exhaustive list of these standards is given in the Bibliography.

Schutzhandschuhe - Allgemeine Anforderungen und Prüfverfahren (ISO 21420:2020)

Dieses Dokument legt die für alle Schutzhandschuhe anwendbaren allgemeinen Anforderungen und die relevanten Prüfverfahren zu Gestaltungsgrundsätzen, Handschuhkonfektionierung, Unschädlichkeit, Komfort und Leistungsvermögen sowie für die vom Hersteller vorgenommene Kennzeichnung und mitgelieferte Informationen fest.
Es kann auch für Armschutz und Handschuhe gelten, die dauerhaft in geschlossenen Behältnissen integriert sind.
Von diesem Dokument werden z. B. Handschuhe und Handschützer wie Fäustlinge, Topflappen und Armschützer erfasst.
Dieses Dokument befasst sich nicht mit den schützenden Eigenschaften von Handschuhen und wird daher nie alleine, sondern nur in Kombination mit den zutreffenden spezifischen Normen angewendet. Eine nicht abschließende Liste dieser Normen enthalten die Literaturhinweise.

Gants de protection - Exigences générales et méthodes d’essai (ISO 21420:2020)

Le présent document définit les exigences générales et les méthodes d'essai concernant la conception et la construction du gant, l'innocuité, le confort et l'efficacité, ainsi que le marquage et les informations fournies par le fabricant applicables à tous les gants de protection.
Le présent document peut aussi s'appliquer aux protecteurs du bras et aux gants incorporés de manière permanente à des enceintes fermées.
Le présent document couvre les gants et protecteurs de la main tels que les mitaines, maniques et protections du bras.
Le présent document ne concerne pas les propriétés de protection des gants et n'est donc pas utilisé seul mais seulement en association avec la ou les normes spécifiques appropriées. Une liste non exhaustive de ces normes est donnée dans la Bibliographie.

Varovalne rokavice - Splošne zahteve in preskusne metode (ISO 21420:2020)

General Information

Status
Published
Public Enquiry End Date
19-Mar-2018
Publication Date
21-May-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
31-Mar-2020
Due Date
05-Jun-2020
Completion Date
22-May-2020

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SLOVENSKI STANDARD
SIST EN ISO 21420:2020
01-junij-2020
Nadomešča:
SIST EN 420:2003+A1:2010
Varovalne rokavice - Splošne zahteve in preskusne metode (ISO 21420:2020)
Protective gloves - General requirements and test methods (ISO 21420:2020)
Schutzhandschuhe - Allgemeine Anforderungen und Prüfverfahren (ISO 21420:2020)
Gants de protection - Exigences générales et méthodes d’essai (ISO 21420:2020)
Ta slovenski standard je istoveten z: EN ISO 21420:2020
ICS:
13.340.40 Varovanje dlani in rok Hand and arm protection
SIST EN ISO 21420:2020 en

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

---------------------- Page: 1 ----------------------
SIST EN ISO 21420:2020
---------------------- Page: 2 ----------------------
SIST EN ISO 21420:2020
EN ISO 21420
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 13.340.40 Supersedes EN 420:2003+A1:2009
English Version
Protective gloves - General requirements and test methods
(ISO 21420:2020)

Gants de protection - Exigences générales et méthodes Schutzhandschuhe - Allgemeine Anforderungen und

d'essai (ISO 21420:2020) Prüfverfahren (ISO 21420:2020)
This European Standard was approved by CEN on 24 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

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21420:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 21420:2020
EN ISO 21420:2020 (E)
Contents Page

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

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of Regulation 2016/425 aimed to be covered ......................................................... 4

---------------------- Page: 4 ----------------------
SIST EN ISO 21420:2020
EN ISO 21420:2020 (E)
European foreword

This document (EN ISO 21420:2020) 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 September 2020, and conflicting national standards

shall be withdrawn at the latest by September 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 420:2003+A1:2009.

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 EU Directive(s).

For the relationship with EU 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,

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 21420:2020 has been approved by CEN as EN ISO 21420:2020 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 21420:2020
EN ISO 21420:2020 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Regulation 2016/425 aimed to be covered

This European Standard has been prepared under a Commission’s standardization request to provide

one voluntary means of conforming to essential requirements of Regulation (EU) 2016/425 EEC on the

approximation of the laws of the Member States relating to personal protective equipment.

Once this standard is cited in the Official Journal of the European Union under that Regulation,

compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of

the scope of this standard, a presumption of conformity with the corresponding Essential Requirements

of that Regulation and associated EFTA regulations.

Table ZA.1 — Correspondence between this European Standard and Annex II of Regulation

2016/425
Essential Health and Safety Requirements of Clause(s)/sub-
Remarks/Notes
Regulation 2016/425, Annex II clause(s) of this EN
1.2.1.1 Innocuousness of PPE- suitable constituent 4.2
materials
1.2.1.3 Maximum permissible user impediment 5.2
1.4 Information supplied by the manufacturer 7.3
2.4 PPE subject to ageing 4.3
7.2.1.1 f) & 7.2.2 g)
2.5 PPE which may be caught up during use 7.3.7
2.6 PPE for use in potentially explosive 4.4
atmosphere
2.12 PPE bearing one or more identification or 7.2.1.1 d) —
recognition marks directly or indirectly relating to 7.2.2 e) —
health and safety 7.3.5
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SIST EN ISO 21420:2020
INTERNATIONAL ISO
STANDARD 21420
First edition
2020-02
Protective gloves — General
requirements and test methods
Gants de protection — Exigences générales et méthodes d’essai
Reference number
ISO 21420:2020(E)
ISO 2020
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SIST EN ISO 21420:2020
ISO 21420:2020(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
---------------------- Page: 8 ----------------------
SIST EN ISO 21420:2020
ISO 21420:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

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

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

3 Terms and definitions ..................................................................................................................................................................................... 2

4 General requirements ..................................................................................................................................................................................... 3

4.1 Glove design and construction — General ...................................................................................................................... 3

4.2 Innocuousness of protective gloves ...................................................................................................................................... 3

4.3 Cleaning ......................................................................................................................................................................................................... 4

4.4 Additional properties ........................................................................................................................................................................ 5

4.4.1 Electrostatic properties ............................................................................................................................................. 5

5 Comfort and efficiency.................................................................................................................................................................................... 5

5.1 Sizing and measurement of gloves ......................................................................................................................................... 5

5.2 Dexterity ....................................................................................................................................................................................................... 5

5.3 Breathability and comfort ............................................................................................................................................................. 6

5.3.1 Water vapour transmission .................................................................................................................................... 6

5.3.2 Water vapour absorption ......................................................................................................................................... 6

6 Test procedures ..................................................................................................................................................................................................... 6

6.1 Measurement of glove length ..................................................................................................................................................... 6

6.1.1 Procedure ............................................................................................................................................................................... 6

6.2 Test method for determining gloved finger dexterity ........................................................................................... 7

6.2.1 Number and condition of specimens ............................................................................................................. 7

6.2.2 Apparatus required ....................................................................................................................................................... 7

6.2.3 Test procedure ................................................................................................................................................................... 7

6.2.4 Test result ...................................................................... ......................................................................................................... 8

6.2.5 Test report ............................................................................................................................................................................. 8

6.3 Test method for determination of water vapour behaviour ............................................................................ 8

6.3.1 Leather materials ............................................................................................................................................................ 8

6.3.2 Textile materials ............................................................................................................................................................... 8

6.4 Test method for the determination of water vapour absorption of leather materials ............. 8

6.4.1 Sampling.................................................................................................................................................................................. 8

6.4.2 Test procedure ................................................................................................................................................................... 8

6.5 Test report ................................................................................................................................................................................................... 8

7 Marking and information ............................................................................................................................................................................ 9

7.1 General ........................................................................................................................................................................................................... 9

7.2 Marking ......................................................................................................................................................................................................... 9

7.2.1 Glove marking .................................................................................................................................................................... 9

7.2.2 Marking of packaging ........................................................................................................................................... .....10

7.3 Information supplied by the manufacturer .................................................................................................................10

7.4 Information to be supplied on request ...........................................................................................................................12

Annex A (informative) Definition of "For minimal risks only" ...............................................................................................13

Annex B (informative) Sizes and measurement of hands ............................................................................................................14

Annex C (normative) Pictograms ..........................................................................................................................................................................16

Annex D (informative) Test results — Uncertainty of measurement ..............................................................................18

Annex E (informative) Flow chart for considering acceptability of materials in protective gloves .19

Annex F (informative) Environmental aspects .......................................................................................................................................21

Annex G (informative) Substances, or families of substances, which are known allergens

that may be found in gloves ....................................................................................................................................................................22

© ISO 2020 – All rights reserved iii
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SIST EN ISO 21420:2020
ISO 21420:2020(E)

Bibliography .............................................................................................................................................................................................................................23

iv © ISO 2020 – All rights reserved
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SIST EN ISO 21420:2020
ISO 21420:2020(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 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.

ISO 21420 was prepared by Technical Committee ISO/TC 94, Personal safety — Protective clothing

and personal protective equipment, Subcommittee SC 13, Protective clothing, in collaboration with the

European Committee for Standardization (CEN) Technical Committee CEN/TC 162, Protective clothing

including hand and arm protection and lifejackets, in accordance with the Agreement on technical

cooperation between ISO and CEN (Vienna Agreement).

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.
© ISO 2020 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 21420:2020
ISO 21420:2020(E)
Introduction

This document is a reference standard to be referred to as appropriate by the specific standards

relevant or applicable to protective gloves.
vi © ISO 2020 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 21420:2020
INTERNATIONAL STANDARD ISO 21420:2020(E)
Protective gloves — General requirements and test methods
1 Scope

This document specifies the general requirements and relevant test procedures for glove design and

construction, innocuousness, comfort and efficiency, as well as the marking and information supplied

by the manufacturer applicable to all protective gloves.

It can also apply to arm protectors and gloves permanently incorporated in containment enclosures.

Gloves and hand protectors such as mittens, pot holders and arm protection are covered by this

document.

This document does not address the protective properties of gloves and therefore is not used alone but

only in combination with the appropriate specific standard(s). A non-exhaustive list of these standards

is given in the Bibliography.
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 3071, Textiles — Determination of pH of aqueous extract
ISO 3758, Textiles — Care labelling code using symbols

ISO 4045:2018, Leather — Chemical tests —  Determination of pH and difference figure

ISO 7000:2014, Graphical symbols for use on equipment — Registered symbols

ISO 11092, Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under

steady-state conditions (sweating guarded-hotplate test)

ISO 14268, Leather — Physical and mechanical tests — Determination of water vapour permeability

ISO 14362-1, Textiles — Methods for determination of certain aromatic amines derived from azo colorants —

Part 1: Detection of the use of certain azo colorants accessible with and without extracting the fibres

ISO/TS 16190, Footwear — Critical substances potentially present in footwear and footwear components —

Test method to quantitatively determine polycyclic aromatic hydrocarbons (PAH) in footwear materials

ISO 17075-1, Leather — Chemical determination of chromium(VI) content in leather — Part 1:

Colorimetric method

ISO 17075-2, Leather — Chemical determination of chromium(VI) content in leather — Part 2:

Chromatographic method

ISO 17234-1, Leather — Chemical tests for the determination of certain azo colorants in dyed leathers —

Part 1: Determination of certain aromatic amines derived from azo colorants
ISO 20344:2011, Personal protective equipment — Test methods for footwear
ISO 23388, Protective gloves against mechanical risks

EN 1811+A1: 2015, Reference test method for release of nickel from post assemblies which are inserted into

pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin

© ISO 2020 – All rights reserved 1
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SIST EN ISO 21420:2020
ISO 21420:2020(E)
EN 16350, Protective gloves — Electrostatic properties
EN 16778, Protective gloves — Determination of dimethylformamide in gloves
IEC 60417:2002, Graphical symbols for use on equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
dexterity
manipulative ability to perform a task with the hands
3.2
glove

personal protective equipment (PPE) which protects the hand or part of the hand against hazards. It

can additionally cover part of the forearm and arm
3.3
glove palm

part of the glove which covers the palm of the hand, i.e. from the wrist to the base of the fingers

3.4
glove back

part of the glove which covers the back of the hand, i.e. from the wrist to the base of the fingers

3.5
hand
end part of the body beyond the wrist, including palm, fingers and the thumb
Note 1 to entry: See Figure 1.
Key
1 hand 3 palm
2 back 4 wrist
Figure 1 — Definitions of hand, palm, back and wrist
3.6
hazard
potential source of injury or damage to the health of people
2 © ISO 2020 – All rights reserved
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SIST EN ISO 21420:2020
ISO 21420:2020(E)
3.7
level of performance

number or letter that designates a particular category or range of performance by which the results of

testing can be graded

Note 1 to entry: The level of performance is determined by the result of the corresponding test as described in

the specific standards referred to in the Bibliography.

Note 2 to entry: A high level number or letter corresponds to a high level of performance.

Note 3 to entry: Levels of performance are based upon the results of laboratory tests, which do not necessarily

reflect actual conditions in the workplace.
3.8
multilayer gloves

gloves containing more than one layer with some level of permanent connection between the layers.

4 General requirements
4.1 Glove design and construction — General

The protective glove shall be designed and manufactured so that in the foreseeable conditions of use,

the wearer can perform the activity as normally as possible with an appropriate protection. This

document along with the appropriate specific standards shall be used to verify this adequation.

If required in the relevant specific standard (for example ISO 16073:2011, 5.7.3), the glove shall be

designed to minimize the donning and doffing time.

For reusable multilayer gloves, the gloves shall be able to be doffed without separation of the layers

of the fingers. When the glove construction includes seams, the material and strength of the seams

shall be such that the overall performance of the glove is not significantly decreased as required in the

relevant specific standards.

Test methods and requirements are stated in the specific standards listed in the Bibliography. The

number of samples shall be as stated in the specific standard. If the standard requests at least x samples

then x samples shall be tested. For uncertainties of measurement, see Annex D.
4.2 Innocuousness of protective gloves

Protective gloves shall not adversely affect the health or hygiene of the user. The materials should not, in

the foreseeable conditions of normal use, release substances generally known to be toxic, carcinogenic,

mutagenic, allergenic, toxic to reproduction, corrosive, sensitizing or irritating.

NOTE 1 Information on the classification and identification of hazardous substances can be found, e.g. in

References [22] and [27].

NOTE 2 Guidance on how to consider acceptability of materials in protective gloves is given in the flow chart

in Annex E.

Materials should be selected to minimize the environmental impact of the production and disposal of

protective gloves (see also Annex F).

The examination shall determine whether the claim that the materials are suitable for use in the

protective gloves is justified. Particular attention shall be paid to the presence of plasticisers, unreacted

components, heavy metals, impurities and the chemical identity of pigments and dyes.

a) Chromium VI content in gloves containing leather shall be tested according to ISO 17075-1 or

ISO 17075-2 and shall be less than 3,0 mg/kg of leather.
Depending on the measured Chromium VI content, the test report shall indicate:
© ISO 2020 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 21420:2020
ISO 21420:2020(E)
— that the Chromium VI content is less than 3,0 mg/kg, or

— that Chromium VI content is equal to or above 3,0 mg/kg and the value that has been determined

in mg/kg.

If the glove includes different types of leather, whether in contact with the skin or not, each leather

type shall be tested separately and comply with the above requirement.

b) All metallic materials which could come into prolonged contact with the skin (for example studs,

fittings) shall have a release of nickel of less than 0,5 µg/cm per week. The method of test shall be

in accordance with EN 1811+A1: 2015.

c) All glove materials shall have a value greater than pH 3,5 and less than pH 9,5. The test method for

leather shall be in accordance with ISO 4045 and for other materials in accordance with ISO 3071.

The following additional requirements shall apply:

— the test piece shall be cut out from the palm area of the glove. If other parts of the glove are

made of different materials, then each material shall be tested separately and comply with the

above requirements;

— if gloves are made of more than one layer, all layers shall be tested separately;

— ISO 4045:2018, 8.4, does not apply.

d) Azo colorants which release carcinogenic amines listed in ISO 14362-1 for all textile materials and

ISO 17234-1 for all leathers shall not be detectable by the method in these standards.

e) Dimethylformamide (DMFa) in gloves containing PU shall not exceed 1 000 mg/kg (0,1 % weight/

weight). The test method shall be in accordance with EN 16778.

f) Polycyclic aromatic hydrocarbons (PAHs) as listed in Table 1, shall not exceed 1 mg/kg (0,000 1 %

by mass of this component), for the rubber or plastic materials intended to come in direct contact

with the skin. The test method shall be in accordance with ISO/TS 16190.
Table 1 — List of PAHs
PAHs designation CAS No
1 Benzo[a]pyrene (BaP) 50-32-8
2 Benzo[e]pyrene (BeP) 192-97-2
3 Benzo[a]anthracene (BaA) 56-55-3
4 Chrysene (CHR) 218-01-9
5 Benzo[b]fluoranthene (BbFA) 205-99-2
6 Benzo[j]fluoranthene (BjFA) 205-82-3
7 Benzo[k]fluoranthene (BkFA) 207-08-9
8 Dibenzo[a,h]anthracene (DBAhA) 53-70-3
4.3 Cleaning

If not otherwise specified, all tests required by this document as well as in the specific standards for

protective gloves shall be performed on unused gloves.

If care instructions are provided (see 7.3.14), the relevant performance-related tests of this document

and the specific s
...

SLOVENSKI STANDARD
oSIST prEN ISO 21420:2018
01-marec-2018
Varovalne rokavice - Splošne zahteve in preskusne metode (ISO/DIS 21420:2018)
Protective gloves - General requirements and test methods (ISO/DIS 21420:2018)
Schutzhandschuhe - Allgemeine Anforderungen und Prüfverfahren (ISO/DIS
21420:2018)

Gants de protection - Exigences générales et méthodes d’essai (ISO/DIS 21420:2018)

Ta slovenski standard je istoveten z: prEN ISO 21420
ICS:
13.340.40 Varovanje dlani in rok Hand and arm protection
oSIST prEN ISO 21420:2018 en

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

---------------------- Page: 1 ----------------------
oSIST prEN ISO 21420:2018
---------------------- Page: 2 ----------------------
oSIST prEN ISO 21420:2018
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21420
ISO/TC 94/SC 13 Secretariat: SNV
Voting begins on: Voting terminates on:
2018-01-01 2018-03-26
Protective gloves — General requirements and test method.
Gants de protection — Exigences générales et méthodes d’essai
ICS: 13.340.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 21420:2018(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2018
---------------------- Page: 3 ----------------------
oSIST prEN ISO 21420:2018
ISO/DIS 21420:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018

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, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 21420:2018
ISO/DIS 21420:2018(E)
Contents Page

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

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

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

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

3 Terms and definitions ..................................................................................................................................................................................... 2

4 General requirements ..................................................................................................................................................................................... 3

4.1 Glove design and construction — General ...................................................................................................................... 3

4.2 Innocuousness of protective gloves ...................................................................................................................................... 3

4.3 Cleaning ......................................................................................................................................................................................................... 4

4.4 Electrostatic properties ................................................................................................................................................................... 4

5 Comfort and efficiency.................................................................................................................................................................................... 5

5.1 Sizing and measurement of gloves ......................................................................................................................................... 5

5.2 Dexterity ....................................................................................................................................................................................................... 5

5.3 Breathability and comfort ............................................................................................................................................................. 6

6 Test procedures ..................................................................................................................................................................................................... 6

6.1 Measurement of glove length ..................................................................................................................................................... 6

6.1.1 Procedure ............................................................................................................................................................................... 6

6.2 Test method for determining gloved finger dexterity ........................................................................................... 7

6.2.1 Number and condition of specimens ............................................................................................................. 7

6.2.2 Apparatus required ....................................................................................................................................................... 7

6.2.3 Test procedure ................................................................................................................................................................... 7

6.2.4 Test result ...................................................................... ......................................................................................................... 8

6.2.5 Test report ............................................................................................................................................................................. 8

6.3 Test method for determination of water vapour transmission ..................................................................... 8

6.3.1 Leather materials ............................................................................................................................................................ 8

6.3.2 Textile materials ............................................................................................................................................................... 8

6.4 Test method for the determination of water vapour absorption of leather materials ............. 8

6.4.1 Sampling.................................................................................................................................................................................. 8

6.4.2 Test procedure ................................................................................................................................................................... 8

6.5 Test report ................................................................................................................................................................................................... 8

7 Marking and information ............................................................................................................................................................................ 9

7.1 General ........................................................................................................................................................................................................... 9

7.2 Marking ......................................................................................................................................................................................................... 9

7.2.1 Glove marking .................................................................................................................................................................... 9

7.2.2 Marking of packaging ........................................................................................................................................... ........ 9

7.3 Information supplied by the manufacturer .................................................................................................................10

Annex A (informative) Definition of "For minimal risks only" ...............................................................................................12

Annex B (normative) Sizes and measurement of hands ...............................................................................................................13

Annex C (normative) Pictograms ..........................................................................................................................................................................15

Annex D (informative) Test results — Uncertainty of measurement ..............................................................................16

Annex E (informative) Flow chart for considering acceptability of materials in protective gloves .17

Annex F (informative) Environmental aspects .......................................................................................................................................18

Annex ZA (informative) Clauses of this European Standard addressing essential

requirements or other provisions of EU Directives ......................................................................................................19

Bibliography .............................................................................................................................................................................................................................20

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oSIST prEN ISO 21420:2018
ISO/DIS 21420:2018(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 21420 was prepared by Technical Committee ISO/TC 94, Personal safety -- Protective clothing and

equipment, Subcommittee SC 13, Protective clothing and by Technical Committee CEN/TC 162, Protective

clothing including hand and arm protection and lifejackets in collaboration.
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oSIST prEN ISO 21420:2018
ISO/DIS 21420:2018(E)
Introduction

This Standard is a reference standard to be called up as appropriate by the specific Standards relevant

or applicable to protective gloves.

This standard should not be used alone, but only in combination with the appropriate specific standard.

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oSIST prEN ISO 21420:2018
DRAFT INTERNATIONAL STANDARD ISO/DIS 21420:2018(E)
Protective gloves — General requirements and test method.
1 Scope

This standard defines the general requirements and relevant test procedures for glove design and

construction, resistance of glove materials to water penetration, innocuousness, comfort and efficiency,

marking and information supplied by the manufacturer applicable to all protective gloves.

NOTE It can also apply to arm protectors and gloves permanently incorporated in containment enclosures.

This Standard does not address the protective properties of gloves and therefore shall not be used alone

but only in combination with the appropriate specific Standard(s).
A non exhaustive list of these standards is given in the Bibliography.
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 14268, Leather — Physical and mechanical tests — Determination of water vapour permeability

ISO 11092, Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under

steady-state conditions (sweating guarded-hotplate test)

ISO 17075, Leather — Chemical tests — Determination of chromium(VI) content (ISO 17075:2007)

ISO 4045, Leather — Determination of pH (ISO 4045:1977)
ISO 3071, Textiles — Determination of pH of aqueous extract

ISO 374-1, Protective gloves against dangerous chemicals and micro-organisms — Part 1: Terminology and

performance requirements for chemical risks
ISO 3758, Textiles — Care labelling code using symbols
ISO 7000, Graphical symbols for use on equipment — Registered symbols

EN 1811, Reference test method for release of nickel from post assemblies which are inserted into pierced

parts of the human body and articles intended to come into direct and prolonged contact with the skin

EN 14362-1, Textiles – Methods for determination of certain aromatic amines derived from azo colourants

EN 17234-1, Leather – Chemical tests for the determination of certain azo-colourants in dyed leather – Part

1: determination of certain aromatic amines derives from azo colourants
prEN 16778, Determination of dimethylformamide in gloves
EN 16350, Protective gloves – Electrostatic properties

EN 1149-1, Protective clothing — Electrostatic properties — Part 1: Surface resistivity (Test methods and

requirements)

EN 1149-3, Protective clothing — Electrostatic properties — Part 3: Test methods for measurement of

charge decay

ISO 14268, Leather — Physical and mechanical tests — Determination of water vapour permeability

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ISO 11092, Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under

steady-state conditions (sweating guarded-hotplate test)
EN ISO 20344, Personal protective equipment – test method for footwear
3 Terms a nd definiti ons

For the purposes of this Standard, the following terms and definitions apply (see Figure 1).

Key
a Hand
b Back
c Palm
d Wrist
F i g u r e 1 — D e f i n it ion s of h a nd , p a l m , b ac k a nd w r i s t
3.1
hand
part of the body from the tip of the middle finger to the wrist
3.2
glove

personal protective equipment (PPE) which protects the hand or part of the hand against hazards. It

can additionally cover part of the forearm and arm
3.3
glove palm

part of the glove which covers the palm of the hand, i.e. from the wrist to the base of the fingers

3.4
glove back

part of the glove which covers the back of the hand, i.e. from the wrist to the base of the fingers

3.5
de x t er it y
manipulative ability to perform a task with the hands
3.6
hazard

situation which can be the cause of any harm or damage to the health of the human body. A non

exhaustive list of specific standards dealing with hazards is given in the Bibliography

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3.7
level of performance

number or letter that designates a particular category or range of performance by which the results of

testing can be gradedThe level of performance is determined by the result of the corresponding test as

described in the specific standards referred to in the Bibliography.

Note 1 to entry: A high level number or letter corresponds to a high level of performance.

Levels of performance are based upon the results of laboratory tests, which do not necessarily reflect

actual conditions in the workplace.
4 General requirements
4.1 Glove design and construction — General

The protective glove shall be designed and manufactured so that in the foreseeable conditions of use

for which it is intended, the user can perform the hazard related activity normally whilst enjoying

appropriate protection at the highest possible level.

If required, the glove shall be designed to minimize the donning and doffing time.

When the glove construction includes seams, the material and strength of the seams shall be such that

the overall performance of the glove is not significantly decreased. Where relevant, test methods and

requirements are specified in the specific standards listed in the Bibliography.
4.2 Innocuousness of protective gloves

Protective gloves shall not adversely affect the health or hygiene of the user. The materials shall not, in

the foreseeable conditions of normal use, release substances generally known to be toxic, carcinogenic,

mutagenic, allergenic, toxic to reproduction or otherwise harmful.
[17]

NOTE 1 Information on the classification and identification of harmful substances can be found, e.g. in of

the Bibliography.

NOTE 2 Guidance on how to consider acceptability of materials in protective gloves is given in the flow chart

in informative Annex E (flow chart).

The following list of documents is given for information and as examples of documents to be examined:

— Information supplied by the manufacturer could include evidence-based information confirming

that the product does not contain any substances at levels that are known or suspected to affect

user hygiene or health adversely,
— Materials specifications,
— Safety data sheets relating to the materials,

— Information relating to the suitability of the materials for use with food, in medical devices, or other

relevant applications,

— Information relating to toxicological, allergenic, carcinogenic, toxic to reproduction or mutagenic

investigations on the materials,

— Information relating to ecotoxicological and other environmental investigations on the materials.

Materials should be selected to minimize the environmental impact of the production and disposal of

protective clothing (see also Annex F).
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The examination shall determine whether the claim that the materials are suitable for use in the

protective gloves is justified. Particular attention shall be paid to the presence of plasticisers, unreacted

components, heavy metals, impurities and the chemical identity of pigments and dyes.

a) Chromium VI content in leather gloves shall not exceed 3 mg/kg according to ISO 17075.

Depending on the measured Chromium VI content, the test report shall indicate:
— that the Chromium VI content is not more than 3,0 mg/kg, or

— that Chromium VI content is more than 3,0 mg/kg and the value that has been determined

in mg/kg.

If the glove includes different types of leather, whether in contact with the skin or not, each leather

type shall be tested separately and comply with the above requirement. At least two samples shall

be taken from different gloves for each leather type.

b) All metallic materials which could come into prolonged contact with the skin (e.g. studs, fittings)

shall have a release of nickel of less than 0,5 µg/cm per week. The method of test shall be according

to EN 1811.

c) Gloves shall have a value greater than pH 3,5 and less than pH 9,5. The test method for leather shall

be according to ISO 4045 and of textile materials according to ISO 3071.
Following amendments shall apply:

— the test piece shall be cut out from the palm area of the glove. If other parts of the glove are

made of different materials, then each material shall be tested separately;

— if gloves are made of more than one layer, all layers shall be tested together;

— if the sample contains leather, then EN ISO 4045 shall be used;
— subclause 8.4 of EN ISO 4045:1998 does not apply.

d) Azo colorants which release carcinogenic amines listed in EN 14362-1 for textile materials and EN

ISO 17234-1 for leather shall not be detectable by the method in these standards.

e) Dimethylformamide (DMFa) in gloves containing PU shall not exceed 0.1% weight/weight. The test

method shall be according to prEN 16778.
4.3 Cleaning

All tests required by this standard as well as in the standards for protective gloves shall be performed

on unused gloves unless otherwise specified.

If care instructions are provided (see 7.3.13), the relevant tests of the specific standards (see

Bibliography) shall be performed on the gloves, before and after they have been subjected to the

maximum recommended number of cleaning cycles. The levels of performance are given by the lowest

results obtained before and after cleaning.
4.4 Electrostatic properties

For protective gloves that are worn in areas where flammable or explosive risks exist or might be

present, the electrostatic properties shall be tested according to the test method described in the

relevant standard EN 16350.

The corresponding pictogram given in Table C1 of Annex C can be used for marking. Reference to

EN 16350 shall be affixed to it as shown in Figure 2.
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oSIST prEN ISO 21420:2018
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EN 16350

Figure 2 — Pictogram for electrostatic properties of gloves according to EN 16350

NOTE In the case that surface electrostatic properties or charge decay need to be determined, EN 1149-

1 or EN 1149-3 standards should be used to determine further electrostatic properties of the gloves. The

corresponding test results may be reported in the information supplied by the manufacturer, but cannot be used

to apply the pictogram.
5 Comfort and efficie ncy
5.1 Sizing and measurement of gloves

Sizes of gloves are defined with respect to the sizes of the hands they are to fit.

The hand sizing system shall either be based on hand circumference and hand length as defined in

Annex B, or if a different sizing system from the one in Annex B is claimed for the glove, the relationship

with the length and circumference of the hand to be gloved shall be provided to the user

If required for specific use (eg. gloves for welders), the minimum glove length shall be defined in the

relevant specific standards and measured according to 6.1.
5.2 Dexterity

A glove should allow as much dexterity as possible given its purpose. Dexterity is related to numerous

factors e. g. thickness of glove material, its elasticity, its deformability.

If required, finger dexterity shall be tested according to the test method in 6.2.

The performances shall be graded according to Table 1 hereafter. If no pin can be picked up, then the

level is 0.
Table 1 — L evel s of p er f or m a nc e - f i n g er de x t er it y t e s t
S m a l le s t d i a me t e r of pi n f u l f i l l i n g t e s t c ond i-
Level of performance tions
1 11
2 9,5
3 8
4 6,5
5 5
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oSIST prEN ISO 21420:2018
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5.3 Breathability and comfort
5.3.1 Water vapour transmission
Where practicable, protective gloves shall allow water vapour transmission.

If claimed, leather gloves shall have a water vapour transmission of at least 5 mg/(cm ⋅ h) when tested

according to 6.3.1.

If claimed, textile gloves shall have a water vapour transmission less than or equal to 30 m .Pa/W when

tested according to 6.3.2.
5.3.2 Water vapour absorption

Where the protection characteristics of the glove inhibit or exclude water vapour transmission, then

the glove should be designed to reduce the effect of perspiration as much as possible.

If claimed, leather gloves shall have a water vapour absorption of at least 8 mg/cm for 8 h when tested

according to 6.4.2.
6 Test procedures
6.1 Measurement of glove length
6.1.1 Procedure

Measure the length by freely suspending the glove with the middle finger on a vertical graduated rule

having a rounded tip so as to fit the shape of the finger tip of the glove. Remove wrinkles and folds

without stretching the glove. Record the minimum measured length to the nearest millimetre.

NOTE 1 See typical shape and dimensions for a vertical graduated rule in Figure 1.

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oSIST prEN ISO 21420:2018
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Key
1 - incorporated ruler on flattened surface
Figure 3 — Example of top part of a vertical graduated rule

NOTE 2 For greater ease of measurement, the rule can be angled backwards slightly so that the glove is in

contact with the rule.

For heavy, stiff gloves, or gloves with thick seams that cannot be measured on the graduated rule,

the glove shall be laid on a table and measured over its back from the tip of the middle finger to cuff

edge using a flexible measuring tape. If this method is used to determine the glove length, it shall be

mentioned in the instructions given by the manufacturer.
6.2 Test method for de termining gloved finger dexterity
6.2.1 Number and condition of specimens

Four gloves of either left or right hand shall be tested. The specimens are the entire gloves and shall be

taken for test in the new (as made) condition. They shall not be softened by any special treatment, e. g.

tapping with a mallet or squeezing between rollers.
6.2.2 Apparatus required

Five solid, centerless ground stainless steel test pins are required, each 40 mm long and of diameter

respectively of 5 mm, 6,5 mm, 8 mm, 9,5 mm, 11 mm.
6.2.3 Test procedure

The pins shall be placed on a flat surface, e. g. a table top, and a trained operator wearing gloves of

adequate size shall pick up the appropriate pin by its circumference between his gloved forefinger

and thumb without any other means of assistance. The operator shall pick up each pin three times

consecutively, without undue fumbling, within 30 s.
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6.2.4 Test result

The result corresponds to the smallest diameter of the pin that can be picked up according to the

procedure in 6.2.3.
6.2.5 Test report

The test report shall contain the information in 6.5. The performance level shall be given in accordance

to Table 1.
6.3 Test method for determination of water vapour transmission
6.3.1 Leather materials
6.3.1.1 Sampling
Only the main leathers used in glove palm and glove back shall be tested.

In case of multilayer construction, the textile lining materials shall be tested separately according to 6.3.2

6.3.1.2 Test procedure
The test shall be performed according to ISO 14268.
6.3.2 Textile materials
6.3.2.1 Sampling

A sample of material as required in ISO 11092 shall be tested, provided the sample material and

construction are identical with that of the glove.
6.3.2.2 Test procedure
The test shall be performed according to ISO 11092.

6.4 Test method for the determination of water vapour absorption of leather materials

6.4.1 Sampling
Only the main leathers used in glove palm and glove back shall be tested.

In case of multilayer construction, the textile lining materials shall be tested separately according to 6.4.2

6.4.2 Test procedure
The test shall be performed according to EN ISO 20344, Clause 6.7.
6.5 Test report

Unless otherwise specified, the test report shall contain the following information :

— reference to the clause of the relevant Standard
— test date, atmosphere and conditioning
— the reference of the sample
— the test result.
8 © ISO 2018 – All rights reserved
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