EN ISO 12870:2004

SLOVENSKI STANDARD
01-marec-2005
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SIST EN ISO 12870:2000
SIST EN ISO 9456:2000
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Ophthalmic optics - Spectacle frames - Requirements and test methods (ISO
12870:2004)
Augenoptik - Brillenfassungen - Anforderungen und Prüfverfahren (ISO 12870:2004)
Optique ophtalmique - Montures de lunettes - Exigences et méthodes d'essai (ISO
12870:2004)
Ta slovenski standard je istoveten z: EN ISO 12870:2004
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 12870
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2004
ICS 11.040.70 Supersedes EN ISO 12870:1997
English version
Ophthalmic optics - Spectacle frames - Requirements and test
methods (ISO 12870:2004)
Optique ophtalmique - Montures de lunettes - Exigences et
méthodes d'essai (ISO 12870:2004)
This European Standard was approved by CEN on 22 July 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
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© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12870:2004: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 12870:2004) has been prepared by Technical Committee ISO/TC 172
"Optics and optical instruments" in collaboration with Technical Committee CEN/TC 170
"Ophthalmic optics", 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 February 2005, and conflicting national
standards shall be withdrawn at the latest by February 2005.

This document supersedes EN ISO 12870:1997.

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 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,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 12870:2004 has been approved by CEN as EN ISO 12870:2004 without any
modifications.
ANNEX ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 93/42 EEC

This European Standard has been prepared under a mandate given to CEN by the European

Commission and the European Free Trade Association to provide a means of conforming to
Essential Requirements of the New Approach Directive 93/42 EEC.

Once this standard is cited in the Official Journal of the European Communities under that
Directive and has been implemented as a national standard in at least one Member State,
compliance with the normative clauses of this standard 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 Directive and associated EFTA regulations.
WARNING: Other requirements and other EU Directives may be applicable to the product(s)
falling within the scope of this standard.

INTERNATIONAL ISO
STANDARD 12870
Second edition
2004-08-01
Corrected version
2004-11-01
Ophthalmic optics — Spectacle frames —
Requirements and test methods
Optique ophtalmique — Montures de lunettes — Exigences et
méthodes d'essai
Reference number
ISO 12870:2004(E)
©
ISO 2004
ISO 12870:2004(E)
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ISO 12870:2004(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Requirements . 2
4.1 General. 2
4.2 Physiological compatibility. 3
4.3 Measurement system. 3
4.4 Dimensional tolerances on nominal size. 3
4.5 Tolerance on screw threads. 4
4.6 Dimensional stability at elevated temperature.4
4.7 Resistance to perspiration. 4
4.8 Mechanical stability . 4
4.9 Resistance to ignition. 5
4.10 Resistance to optical radiation. 5
5 Selection of test samples. 5
5.1 General. 5
5.2 Testing for nickel release. 5
5.3 Change in spectacle frame model. 5
6 Preparation and conditioning of test samples. 6
6.1 Test lenses. 6
6.2 Sample conditioning and test conditions. 6
7 Testing, inspection and compliance . 6
7.1 Testing. 6
7.2 Inspection and examination. 7
7.3 Compliance. 7
8 Test methods. 8
8.1 General. 8
8.2 Test for dimensional stability at elevated temperature. 8
8.3 Test for resistance to perspiration. 9
8.4 Bridge deformation test. 10
8.5 Endurance test . 12
8.6 Test for resistance to ignition. 14
8.7 Test for resistance to optical radiation. 14
8.8 Nickel release . 15
9 Marking. 16
10 Additional information to be supplied by the manufacturer or other person (agent)
placing the product on the market . 17
11 Reference to ISO 12870 . 18
Annex A (informative) Recommendations for the design of spectacle frames . 19
Annex B (informative) Examples of layout of test equipment . 22
Annex C (informative) Examples of cutting metal spectacle frames before testing for nickel
release. 25
Bibliography . 26

ISO 12870:2004(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
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