SIST EN ISO 18527-2:2021
(Main)Eye and face protection for sports use - Part 2: Requirements for eye protectors for squash and eye protectors for racquetball and squash 57 (ISO 18527-2:2021)
Eye and face protection for sports use - Part 2: Requirements for eye protectors for squash and eye protectors for racquetball and squash 57 (ISO 18527-2:2021)
This document applies to all eye protectors intended for eye protection against hazards during playing or instructing in the sports of squash, racquetball and squash 57 and sports with similar hazards and no greater risks. It applies to eye protectors that incorporate prescription lenses but has no specific tests for eye protectors designed for use over spectacles.
It specifies requirements and testing for materials, performance, marking of eye protectors and information to be supplied by the manufacturer.
Information on the selection and use of eye protectors for squash, racquetball and squash 57 is given in Annex A.
This document does not apply to
a) sports eye protectors designed for use over prescription spectacles,
b) eye protectors for other occupational applications,
c) eye protectors without lenses,
d) eye protectors for sports where the hazards are unrelated to the hazards in or involve greater risks than squash, racquetball and squash 57, and
e) eye protectors with gradient-tinted lenses because they are not appropriate for squash, racquetball or squash 57.
Augen- und Gesichtsschutz für sportliche Anwendungen - Teil 2: Anforderungen an Augenschutzgeräte für Squash und Augenschutzgeräte für Racquetball und Squash 57 (ISO 18527-2:2021)
Dieses Dokument ist für alle Augenschutzgeräte anwendbar, die für den Schutz der Augen gegen Gefährdungen beim Spielen oder der Unterrichtung der Sportarten Squash, Racquetball und Squash 57 und von Sportarten mit ähnlichen Gefährdungen und höchstens gleich großen Risiken vorgesehen sind. Es ist anwendbar für Augenschutz¬geräte, die Korrektionssichtscheiben enthalten, enthält jedoch keine entsprechenden Prüfungen für Augenschutzgeräte, die für das Tragen über Bügelbrillen ausgelegt sind.
Es legt die Anforderungen und Prüfungen für Werkstoffe, Funktionstauglichkeit, Kennzeichnung von Augenschutzgeräten und die vom Hersteller bereitzustellenden Informationen fest.
Anhang A enthält Informationen zur Auswahl und Verwendung von Augenschutzgeräten für Squash, Racquetball und Squash 57.
Dieses Dokument ist nicht anwendbar für:
a) Sport-Augenschutzgeräte, die für das Tragen über Korrektionsbügelbrillen ausgelegt sind;
b) Augenschutzgeräte für andere betriebliche Anwendungen;
c) Augenschutzgeräte ohne Sichtscheiben;
d) Augenschutzgeräte für Sportarten, deren Gefährdungen nicht mit den bei Squash, Racquetball und Squash 57 auftretenden Gefährdungen verwandt sind oder die mit größeren Risiken als diese verbunden sind; und
e) Augenschutzgeräte mit Verlaufssichtscheiben, da sie nicht für Squash, Racquetball oder Squash 57 geeignet sind.
Protection des yeux et du visage à usage sportif - Partie 2: Exigences relatives aux protecteurs de l'oeil pour le squash et aux protecteurs de l'oeil pour le racquetball et le squash 57 (ISO 18527-2:2021)
Le présent document s'applique à tous les protecteurs de l'œil destinés à assurer la protection des yeux contre les dangers liés à la pratique ou à l'enseignement du squash, racquetball et squash 57, ainsi que des sports présentant des dangers semblables sans impliquer de risques plus importants. Il s'applique aux protecteurs de l'œil comprenant des verres correcteurs, mais ne comporte pas d'essais spécifiques pour les protecteurs de l'œil conçus pour être portés par-dessus des lunettes.
Il spécifie les exigences et essais pour les matériaux, la performance et le marquage des protecteurs de l'œil, ainsi que les informations à fournir par le fabricant.
L'Annexe A fournit des informations sur la sélection et l'utilisation de protecteurs de l'œil pour la pratique du squash, du racquetball et du squash 57.
Le présent document ne s'applique pas:
a) aux protecteurs de l'œil pour la pratique sportive lorsqu'ils sont destinés à être portés par-dessus des lunettes de vue;
b) aux protecteurs de l'œil pour d'autres applications professionnelles;
c) aux protecteurs de l'œil sans verres;
d) aux protecteurs de l'œil pour les sports dans lesquels les dangers n'ont pas de lien avec les dangers inhérents au squash, au racquetball ou au squash 57, ou comportant des risques supérieurs aux risques encourus lors de la pratique de ces sports;
e) aux protecteurs de l'œil avec des verres dégradés, car ces derniers ne conviennent pas à la pratique du squash, du racquetball ou du squash 57.
Ščitniki za oči in obraz za uporabo pri športu - 2. del: Zahteve za ščitnike za oči za skvoš in racquetball ter skvoš 57 (ISO 18527-2:2021)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2021
Ščitniki za oči in obraz za uporabo pri športu - 2. del: Zahteve za ščitnike za oči za
skvoš in racquetball ter skvoš 57 (ISO 18527-2:2021)
Eye and face protection for sports use - Part 2: Requirements for eye protectors for
squash and eye protectors for racquetball and squash 57 (ISO 18527-2:2021)
Augen- und Gesichtsschutz für sportliche Anwendungen - Teil 2: Anforderungen an
Augenschutzgeräte für Squash und Augenschutzgeräte für Racquetball und Squash 57
(ISO 18527-2:2021)
Protection des yeux et du visage à usage sportif - Partie 2: Exigences relatives aux
protecteurs de l'oeil pour le squash et aux protecteurs de l'oeil pour le racquetball et le
squash 57 (ISO 18527-2:2021)
Ta slovenski standard je istoveten z: EN ISO 18527-2:2021
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
97.220.30 Oprema za dvoranske športe Indoor sports equipment
97.220.40 Oprema za športe na Outdoor and water sports
prostem in vodne športe equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 18527-2
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2021
EUROPÄISCHE NORM
ICS 13.340.20; 97.220.30; 97.220.40
English Version
Eye and face protection for sports use - Part 2:
Requirements for eye protectors for squash and eye
protectors for racquetball and squash 57 (ISO 18527-
2:2021)
Protection des yeux et du visage à usage sportif - Partie Augen- und Gesichtsschutz für sportliche
2: Exigences relatives aux protecteurs de l'oeil pour le Anwendungen - Teil 2: Anforderungen an
squash et aux protecteurs de l'oeil pour le racquetball Augenschutzgeräte für Squash und Augenschutzgeräte
et le squash 57 (ISO 18527-2:2021) für Racquetball und Squash 57 (ISO 18527-2:2021)
This European Standard was approved by CEN on 14 November 2020.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18527-2:2021 E
worldwide for CEN national Members.
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 . 5
European foreword
This document (EN ISO 18527-2:2021) has been prepared by Technical Committee ISO/TC 94
"Personal safety -- Personal protective equipment" in collaboration with Technical Committee CEN/TC
85 “Eye protective equipment” the secretariat of which is held by AFNOR.
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 March 2022, and conflicting national standards shall
be withdrawn at the latest by March 2022.
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 has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation 2016/425.
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN websites.
The following referenced documents are indispensable for the application of this document. For
undated references, the latest edition of the referenced document (including any amendments) applies.
For dated references, only the edition cited applies. However, for any use of this document ‘within the
meaning of Annex ZA’, the user should always check that any referenced document has not been
superseded and that its relevant contents can still be considered the generally acknowledged state-of-
art.
When an IEC or ISO standard is referred to in the ISO standard text, this shall be understood as a
normative reference to the corresponding EN standard, if available, and otherwise to the dated version
of the ISO or IEC standard, as listed below.
NOTE The way in which these referenced documents are cited in normative requirements determines the
extent (in whole or in part) to which they apply.
Undated normative Clause(s) of the ISO Equivalent dated standard
references in the ISO standard
EN ISO or IEC
standard
ISO 4007 Clause 2 & 3 EN ISO 4007:2018 ISO 4007:2018
ISO 8980-5 Clause 2 & 13.2 EN ISO 8980-5:2005 ISO 8980-5:2005
ISO 11664-2 Clause 2, 5.1, 5.6.4 & 5.6.5 EN ISO 11664-2:2011 ISO 11664-2:2007
ISO 18526-1 Clause 2 EN ISO 18526-1:2020 ISO 18526-1:2020
ISO 18526-2 Clause 2 EN ISO 18526-2:2020 ISO 18526-2:2020
ISO 18526-3 Clause 2 EN ISO 18526-3 :2020 ISO 18526-3:2020
ISO 18526-4 Clause 2, 4.5 & 14.3 EN ISO 18526-4:2020 ISO 18526-4:2020
ISO 21987 Clause 2 & 7.2 EN ISO 21987:2017 ISO 21987:2017
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 18527-2:2021 has been approved by CEN as EN ISO 18527-2:2021 without any
modification.
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 [Full
reference to the request “M/571/”C(2015) xxxx final”] to provide one voluntary means of conforming
to requirements of Regulation 2016/425.
Once this standard is cited in the Official Journal of the European Union under that Regulation
2016/425 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 2016/425 and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex II of Regulation
2016/425 OJEU reference
Essential Requirements of Clause(s)/subclause(s) Remarks/Notes
Regulation of this EN
1.1.1 Ergonomics 4.5; 11
1.1.2.1 Optimum level of 5.7; 5.8; 6; 7; 11; 12; 13
protection
1.1.2.2 Classes of protection 5.2; 5.3; 5.4; 5.5; 5.6; 8.1; 8.2
appropriate to different levels of
risk
1.2.1 Absence of risks and other 4.2; 4.4
'inherent' nuisance factors
1.2.1.1 Suitable constituent 4.4
materials
1.2.1.2 Satisfactory surface 4.2; 4.5
condition of all PPE parts in
contact with the user.
1.2.1.3 Maximum permissible 4.5;11
user impediment
1.3.1 Adaptation of PPE to user 4.1; 4.5; 11
morphology
1.3.2 Lightness and design 8, 9, 10
strength
1.4 Manufacturer's instructions 14
and information
2.1 PPE incorporating 4.5
adjustment systems
2.3 PPE for the face, eyes and 5.2; 5.7; 5.8; 6; 7; 11; 12
respiratory system
2.9 PPE incorporating 4.2; 4.5
components which can be
adjusted or removed by the use
2.12 PPE bearing one or more 14
identification markings or
indicators directly or indirectly
relating to health and safety
2.14 Multi risk" PPE 8; 10
3.1.1 Impact caused by falling or 8
ejected objects and collision of
parts of the body with obstacle
3.9.1 Non-ionising radiation 5.2; 5.3; 5.4; 5.5; 5.6; 5.7; 5.8; 9;
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
INTERNATIONAL ISO
STANDARD 18527-2
First edition
2021-03
Eye and face protection for sports
use —
Part 2:
Requirements for eye protectors
for squash and eye protectors for
racquetball and squash 57
Protection des yeux et du visage à usage sportif —
Partie 2: Exigences relatives aux protecteurs de l'œil pour le squash et
aux protecteurs de l'œil pour le racquetball et le squash 57
Reference number
ISO 18527-2:2021(E)
©
ISO 2021
ISO 18527-2:2021(E)
© ISO 2021
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
ISO 18527-2:2021(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General requirements for eye protectors . 2
4.1 Physiological compatibility . 2
4.2 Construction and adjustment . 2
4.3 Cleaning and/or disinfection . 3
4.4 Lens material and surface quality . 3
4.5 Headform(s) . 3
4.6 Retention by headband and harnesses (sit and fit) . 3
4.7 Mandatory and optional requirements . 3
5 Transmittance of the lenses . 3
5.1 General . 3
5.2 Transmittance categories . 3
5.3 Solar ultraviolet transmittance . 4
5.4 General transmittance requirements . 4
5.4.1 Uniformity of luminous transmittance and transmittance matching . 4
5.4.2 Variations due to thickness variations . 5
5.5 Special transmittance requirements . 5
5.5.1 Photochromic lenses . 5
5.5.2 Polarizing lenses . 5
5.5.3 Gradient-tinted lenses . 5
5.6 Claimed transmittance and reflectance properties (optional requirements) . 5
5.6.1 General. 5
5.6.2 Solar blue-light absorption/transmittance . . 5
5.6.3 Solar UV absorption/transmittance . 6
5.6.4 Anti-reflective coated lenses. 6
5.6.5 Reduced reflection coated lenses . 6
6 Scattered light . 7
7 Refractive power . 7
7.1 Non-prescription eye protectors . 7
7.1.1 Spherical and cylindrical power . 7
7.1.2 Spatial deviation . 7
7.1.3 Prism imbalance . 7
7.2 Prescription eye protectors . 7
8 Mechanical strength . 8
8.1 Mechanical strength of squash eye protectors . 8
8.2 Mechanical strength of racquetball and squash 57 eye protectors . 8
8.3 Failure criteria after impact . 8
9 Resistance to solar ultraviolet radiation . 9
10 Resistance to ignition . 9
11 Field of view. 9
12 Minimum area to be protected .10
12.1 Assessment of frontal protection .10
12.2 Assessment of lateral protection .10
13 Optional requirements .11
13.1 Resistance to fogging .11
ISO 18527-2:2021(E)
13.2 Resistance to abrasion .11
14 Marking and information to be supplied by the manufacturer .11
14.1 Assessment .11
14.2 Mandatory markings on eye protectors .12
14.3 Information to be supplied with each eye protector by the manufacturer.12
14.4 Additional information to be available from the manufacturer .13
15 Selection of test samples .13
15.1 General .13
15.2 Preparation and conditioning of test samples .13
Annex A (informative) Use of squash eye protectors and racquetball and squash 57 eye
protectors .16
Annex B (informative) Selection of squash eye protectors and racquetball and squash 57
eye protectors for prescription lens wearers .18
Bibliography .19
iv © ISO 2021 – All rights reserved
ISO 18527-2:2021(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 of 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 www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 94, Personal safety — Personal protective
equipment, Subcommittee SC 6, Eye and face protection, in collaboration with the European Committee
for Standardization (CEN) Technical Committee CEN/TC 85, Eye protective equipment, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts of ISO 18527 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.
ISO 18527-2:2021(E)
Introduction
This family of documents comprised of the ISO 16321 series, the ISO 18526 series and the ISO 18527 series
was developed in response to the worldwide stakeholders’ demand for minimum requirements and test
methods for eye and face protectors traded internationally. ISO 4007 gives the terms and definitions
for all the various product types. The test methods are given in the ISO 18526 series, while the
requirements for occupational eye and face protectors are given in the ISO 16321 series. Eye protection
for specific sports are mostly dealt with by the ISO 18527 series. A guidance document, ISO 19734, for
the selection, use and maintenance of eye and face protectors is under preparation.
vi © ISO 2021 – All rights reserved
INTERNATIONAL STANDARD ISO 18527-2:2021(E)
Eye and face protection for sports use —
Part 2:
Requirements for eye protectors for squash and eye
protectors for racquetball and squash 57
1 Scope
This document applies to all eye protectors intended for eye protection against hazards during playing
or instructing in the sports of squash, racquetball and squash 57 and sports with similar hazards and
no greater risks. It applies to eye protectors that incorporate prescription lenses but has no specific
tests for eye protectors designed for use over spectacles.
It specifies requirements and testing for materials, performance, marking of eye protectors and
information to be supplied by the manufacturer.
Information on the selection and use of eye protectors for squash, racquetball and squash 57 is given in
Annex A.
This document does not apply to
a) sports eye protectors designed for use over prescription spectacles,
b) eye protectors for other occupational applications,
c) eye protectors without lenses,
d) eye protectors for sports where the hazards are unrelated to the hazards in or involve greater risks
than squash, racquetball and squash 57, and
e) eye protectors with gradient-tinted lenses because they are not appropriate for squash, racquetball
or squash 57.
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 4007, Personal protective equipment — Eye and face protection — Vocabulary
ISO 8980-5, Ophthalmic optics — Uncut finished spectacle lenses — Part 5: Minimum requirements for
spectacle lens surfaces claimed to be abrasion-resistant
ISO 11664-2, Colorimetry — Part 2: CIE standard illuminants
ISO 18526-1:2020, Eye and face protection — Test methods — Part 1: Geometrical optical properties
ISO 18526-2:2020, Eye and face protection — Test methods — Part 2: Physical optical properties
ISO 18526-3:2020, Eye and face protection — Test methods — Part 3: Physical and mechanical properties
ISO 18526-4, Eye and face protection — Test methods — Part 4: Headforms
ISO 21987, Ophthalmic optics — Mounted spectacle lenses
ISO 18527-2:2021(E)
3 Terms and definitions
For the purposes of this document, the terms and the definitions given in ISO 4007 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
1)
4 General requirements for eye protectors
4.1 Physiological compatibility
Eye protectors shall be designed and manufactured in such a way that, when used under the conditions
and for the purposes intended, they will not compromise the health or safety of the wearer. The risks
posed by substances leaking or evaporating from the eye protector that can come into prolonged
contact with the wearer, shall be reduced by the manufacturer to within the limits of any applicable
regulatory requirement.
Special attention shall be given to substances that are allergenic, carcinogenic, mutagenic or toxic to
reproduction.
NOTE 1 Excessive pressure due to a poor fit on the head, chemical irritation or allergy are known to produce
reactions. Rare or idiosyncratic reactions to any material are known to occur and the individual wearer is well
advised to avoid those types of frame materials.
Substances recommended for cleaning, maintenance or disinfection shall be known to be unlikely to
have any adverse effect upon the wearer, when applied in accordance with the instructions given in the
information to be supplied by the manufacturer.
Manufacturers/suppliers shall perform an appropriate risk analysis on potentially harmful substances
contained in the eye protector such that, when the protector is used under the conditions and for the
purposes intended, the health (and safety) of the wearer shall not be compromised.
The following are examples of documents that represent the appropriate information:
a) specification of the material(s);
b) safety data sheets relating to the materials;
c) information relating to the suitability of the materials for use with food, in medical devices, or
other relevant applications;
d) information relating to toxicological, allergenic, carcinogenic, toxic to reproduction, or mutagenic
investigations on the materials.
NOTE 2 Specific national regulations with regard to the restriction of certain chemical substances need to be
observed, for example release of nickel.
4.2 Construction and adjustment
Areas of the eye protectors that may, during intended use, come into contact with the wearer or other
players on the court shall be smooth, without sharp protuberances that may cause discomfort or injury
to the wearer or other players on the court.
1) For the purposes of this document, “eye protector” is used to mean eye protectors for squash, racquetball and
squash 57.
2 © ISO 2021 – All rights reserved
ISO 18527-2:2021(E)
Any part of the eye protectors that can be adjusted or removed by the wearer for the purpose of
replacement (in accordance with the instructions given in the information to be supplied by the
manufacturer) shall facilitate adjustment, removal and attachment without the use of tools.
Any adjustment system incorporated in the eye protectors shall maintain the intended fit for the
foreseeable conditions of use.
The test shall be carried out by physical inspection according to ISO 18526-3:2020, 6.1.
4.3 Cleaning and/or disinfection
The eye protector shall be cleaned only once according to the cleaning and/or disinfection procedures
in the information to be supplied by the manufacturer before being subjected to testing.
4.4 Lens material and surface quality
+05,
In a circular area 30 mm diameter centred on the reference point(s) but excluding a marginal area
−0
+0
5 mm wide around the edge of the lens if this overlaps with the circular area, lenses shall be free
−05,
from defects likely to impair vision in use (such as bubbles, scratches, inclusions, dull spots, pitting,
mould marks, scouring, grains, pocking, scaling and undulation) when examined according to
ISO 18526-3:2020, 6.6.
4.5 Headform(s)
Unless the manufacturer specifies the headform(s) according to ISO 18526-4 that is/are compatible
with the eye protector, the test methods where (a) headform(s) is/are required shall use the headform
1-M according to ISO 18526-4 as the default.
4.6 Retention by headband and harnesses (sit and fit)
Eye protectors shall sit in the intended position during normal use and shall adapt to the contours of
the face. The surfaces in contact with the face shall be made of soft flexible material. Any headband
shall be designed to be flexible or adjustable and sit securely on the back of the head. Any headband
assembly shall not cause any discomfort nor exhibit any insecurity when tested in accordance with
ISO 18526-3:2020, 6.5.
4.7 Mandatory and optional requirements
In this document both optional and mandatory requirements are described. Depending on the intended
use and/or the manufacturer's claimed specification, some requirements marked as optional become
mandatory.
5 Transmittance of the lenses
5.1 General
Transmittance values shall be determined in accordance with ISO 18526-2:2020, Clauses 6 to 11
as appropriate. Luminous transmittance shall be calculated using CIE standard illuminant D65 in
accordance with ISO 11664-2 (see also ISO 4007:2018, 3.10.1.32).
5.2 Transmittance categories
Depending upon the mean luminous transmittance, τ , at their reference points and at (23 ± 1) °C in
v,D65
the case of temperature sensitive transmittance, lenses for squash, racquetball and squash 57 use shall
be attributed to one of the five tint categories in Table 1.
ISO 18527-2:2021(E)
The ranges of the luminous transmittance, τ , of these five categories are given by the values in
v,D65
Table 1. An overlap of the transmittance values shall be not more than ±2 % absolute between the
categories 0, 1, 2 and 3. There is no overlap in transmittance values between categories 3 and 4.
If the manufacturer and/or supplier declares a luminous transmittance value, the maximum deviation
for this value shall be ±3 % absolute for the transmittance values falling in categories 0 to 3 and ±30 %
relative to the stated value for the transmittance values falling in category 4.
When describing the transmittance properties of lenses with changeable tint, e.g. photochromic, two
categories for luminous transmittance values are generally used. These two values correspond to the
highest and lowest luminous transmittance state of the lens.
5.3 Solar ultraviolet transmittance
When tested within a 10 mm radius circle centred on the reference point according to ISO 18526-2:2020,
Clause 8, the solar UV-A, τ , solar UV-B, τ , and mean spectral (380 to 400) nm, τ ,
SUVA SUVB m380-400
transmittances shall conform with the requirements in Table 1, based on the mean luminous
transmittance, τ , at the reference points of the lens(es).
v,D65
Table 1 — Transmittance requirements for the lenses of squash, racquetball and squash 57 eye
protectors
Wavelength range from 280 nm to 400 nm Visible spectral range
Maximum Maximum Maximum mean
Luminous
solar UV-B solar UV-A 380 nm to 400 nm
transmittance
Tint
transmittance transmittance spectral transmittance
category
τ τ τ τ
SUVB SUVA,380 m380-400 v,D65
280 nm ≤ λ ≤ 315 nm 315 nm ≤ λ ≤ 380 nm 380 nm ≤ λ ≤ 400 nm 380 nm ≤ λ ≤ 780 nm
(%) (%) (%) (%)
S0, R0 or
τ > 80
v,D65
SR0
0,75 τ
v,D65
S1, R1 or
0,30 τ 43 < τ ≤ 80
v,D65 v,D65
SR1
S2, R2 or
18 < τ ≤ 43
v,D65
SR2 0,03 τ
v,D65
0,50 τ
v,D65
S3, R3 or
8 < τ ≤ 18
v,D65
SR3
0,15 τ
S4, R4 or v,D65 0,5 % absolute or
SR4 0,15 τ 3 < τ ≤ 8
v,D65 v,D65
whichever is greater
NOTE 1 Some national requirements can stipulate a different requirement for the long wavelength limit of UV-A.
NOTE 2 The code letter "S" applies to protectors designed for squash, "R" for racquetball and squash 57, "SR" for both.
5.4 General transmittance requirements
5.4.1 Uniformity of luminous transmittance and transmittance matching
+05,
Lenses shall appear to be visually uniform within circles 30 mm diameter centred on the reference
−
+0
points or to the edge of the lens less the marginal zone 5 mm wide (whichever is greater), and
−05,
appear to have the same transmittance at the two reference points when inspected against a white
background in accordance with ISO 18526-3:2020, 6.6. Where there is visible non-uniformity, then,
when tested according to ISO 18526-2:2020, 7.4, the relative difference in the luminous transmittance
values between any two points of the lens within these areas shall not be greater than 15 % (relative to
the higher value), except for tint category S4, R4 or SR4 where it shall not be greater than 20 %.
4 © ISO 2021 – All rights reserved
ISO 18527-2:2021(E)
Where there are visibly mismatched transmittances at the reference points, when measured in
accordance with ISO 18526-2:2020, 7.5, the difference in luminous transmittance values at the reference
points for the right and left eyes shall not exceed 15 % (relative to the higher transmittance).
5.4.2 Variations due to thickness variations
Changes of luminous transmittance that are caused by thickness variations due to the design of the lens
are permitted. For verification, the test method in ISO 18526-2:2020, 7.4.1.4 shall be used.
5.5 Special transmittance requirements
5.5.1 Photochromic lenses
The tint categories of photochromic lenses shall be determined by the luminous transmittance in the
faded state, τ , and the luminous transmittance in the darkened state, τ , measured according to
v,0 v,1
ISO 18526-2:2020, Clause 16, at a temperature of (23 ± 1) °C. In both states, the requirements specified
in 5.2 and 5.3 shall be met. The photochromic response PR = τ /τ shall be ≥1,25.
v,0 v,1
5.5.2 Polarizing lenses
5.5.2.1 Plane of transmission
If the lenses in the eye protector are claimed to be polarizing, the lenses shall be fitted in the frame so that
their planes of transmission, when tested according to ISO 18526-2:2020, 15.1, shall not deviate from the
vertical by more than ±5°. When the eye protector is fitted with two separate lenses, any misalignment
between the planes of transmission of the left and right lenses shall not be greater than 6°.
5.5.2.2 Polarizing efficiency
When tested according to ISO 18526-2:2020, 15.2, the polarizing efficiency, P, shall be ≥78 % for tint
categories 2, 3, 4 and ≥60 % for tint category 1.
NOTE 1 These values are equivalent to ratios of the luminous transmittance values parallel and perpendicular
to the plane of transmission of approximately 8:1 and 4:1 respectively.
NOTE 2 Lenses of tint category 0 do not have any useful polarizing effect.
5.5.3 Gradient-tinted lenses
No provision is made for gradient-tinted lenses because they are not appropriate for squash, racquetball
and squash 57.
5.6 Claimed transmittance and reflectance properties (optional requirements)
5.6.1 General
In the case where specific transmittance values are claimed, these claims shall be according to 5.6.2
and 5.6.3. These requirements shall apply within a 10 mm radius circle centred on the reference point.
5.6.2 Solar blue-light absorption/transmittance
a) Solar blue-light absorption – In the case where it is claimed that a lens has x % solar blue-
light absorption, the solar blue-light transmittance, τ , of the lens, measured according to
SB
ISO 18526-2:2020, 9.1 shall not exceed (100,5 − x) %.
ISO 18527-2:2021(E)
b) Solar blue-light transmittance – In the case where it is claimed that a lens has less than x % solar
blue-light transmittance, the solar blue-light transmittance, τ , of the lens, measured according to
SB
ISO 18526-2:2020, 9.1 shall not exceed (x + 0,5) %.
For the calculation of the solar blue-light transmittance, the values of ISO 18526-2:2020, Table D.1 shall
be used.
5.6.3 Solar UV absorption/transmittance
Requirements for the maximum transmittance of lenses in the UV-A and UV-B shall be as given in Table 1
as appropriate. In cases where it is claimed that a lens provides a certain percentage of UV absorption
or UV transmittance that is better than the requirement in Table 1, the corresponding requirements
shall apply.
For the calculation of the values of UV absorption/transmittance the values of ISO 18526-2:2020,
Table D.1 shall be used.
a) Solar UV absorption – In the case where it is claimed that a lens has x % solar UV absorption, the
solar UV transmittance of the lens, τ , measured according to ISO 18526-2:2020, 8.3 shall not
SUV,380
exceed (100,5 − x) %.
b) Solar UV transmittance – In the case where it is claimed that a lens has less than x % solar
UV transmittance, the solar UV transmittance of the lens, τ , measured according to
SUV,380
ISO 18526-2:2020, 8.3 shall not exceed (x + 0,5) %.
c) Solar UV-A absorption – In the case where it is claimed that a lens has x % solar UV-A absorption,
the solar UV-A transmittance of the lens, τ , measured according to ISO 18526-2:2020, 8.4
SUVA,380
shall not exceed (100,5 − x) %.
d) Solar UV-A transmittance - In the case where it is claimed that a lens has less than x % solar
UV-A transmittance, the solar UV-A transmittance of the lens, τ , measured according to
SUVA,380
ISO 18526-2:2020, 8.4 shall not exceed (x + 0,5) %.
e) Solar UV-B absorption - In the case where it is claimed that a lens has x % solar UV-B absorption,
the solar UV-B transmittance of the lens, τ , measured according to ISO 18526-2:2020, 8.5 shall
SUVB
not exceed (100,5 − x) %.
f) Solar UV-B transmittance - In the case where it is claimed that a lens has less than x %
UV-B transmittance, the solar UV-B transmittance of the lens, τ , measured according to
SUVB
ISO 18526-2:2020, 8.5 shall not exceed (x + 0,5) %.
5.6.4 Anti-reflective coated lenses
In the case where lenses are claimed to have an anti-reflective coating, the luminous reflectance, ρ ,
v
of the lens, measured from the eye-side according to ISO 18526-2:2020, Clause 13 with the specular-
included geometry specified in ISO 18526-2:2020, 12.2.2 and using CIE standard illuminant D65
according to ISO 11664-2, shall be less than 2,5 %.
NOTE This optional claim is applicable to lenses with an anti-reflective coating on the back surface.
5.6.5 Reduced reflection coated lenses
In the case where lenses are claimed to have reduced reflections, the luminous reflectance, ρ , of the
v
lens measured from the eye-side according to ISO 18526-2:2020, Clause 13 with the specular-included
geometry specified in ISO 18526-2:2020, Clause 12.2.2 and using CIE standard illuminant D65 according
to ISO 11664-2, shall be less than 8,0 %.
NOTE This optional claim is applicable to tint category 1 or 2 lenses having a mirror coating on the front
surface and an anti-reflective coating on the back surface to reduce the increased inter-reflections due to the
mirror coated front surface.
6 © ISO 2021 – All rights reserved
SIST EN
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