1、BSI Standards PublicationBS EN ISO 12312-2:2015Eye and face protection Sunglasses and relatedeyewearPart 2: Filters for direct observation of thesunBS EN ISO 12312-2:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 12312-2:2015.The UK participation in it
2、s preparation was entrusted to Technical Committee PH/2/1, Sunglasses and Sports Vision.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for
3、 its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 78222 0 ICS 13.340.20 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Polic
4、y and Strategy Committee on 30 June 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12312-2 June 2015 ICS 13.340.20 English Version Eye and face protection - Sunglasses and related eyewear - Part 2: Filters for d
5、irect observation of the sun (ISO 12312-2:2015) Protection des yeux et du visage - Lunettes de soleil et articles de lunetterie associs - Partie 2: Filtres pour lobservation directe du soleil (ISO 12312-2:2015) Augen- und Gesichtsschutz - Sonnenbrillen und hnlicher Augenschutz - Teil 2: Filter fr di
6、e direkte Beobachtung der Sonne (ISO 12312-2:2015) This European Standard was approved by CEN on 16 April 2015. 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 alt
7、eration. 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 ma
8、de 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, Esto
9、nia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STAN
10、DARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12312-2:2015 EBS EN ISO 12312-2:201
11、5EN ISO 12312-2:2015 (E) 3 European foreword This document (EN ISO 12312-2:2015) has been prepared by Technical Committee ISO/TC 94 “Personalsafety - Protective clothing and equipment” in collaboration with Technical Committee CEN/TC 85 “Eyeprotective equipment” the secretariat of which is held by A
12、FNOR. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by December 2015, and conflicting national standards shall be withdrawnat the latest by December 2015. Attention is drawn to the possibility that
13、some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, an
14、d supports essential requirements of EU Directive. For relationship with EU Directive, 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 followingcountries are bound to implement this E
15、uropean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slo
16、venia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 12312-2:2015 has been approved by CEN as EN ISO 12312-2:2015 without any modification. BS EN ISO 12312-2:2015EN ISO 12312-2:2015 (E) 4 Annex ZA (informative) Relationship between this European Standa
17、rd and the EssentialRequirements of EU Directive 89/686/EEC Personal protective equipment This European Standard has been prepared under a mandate given to CEN by the European Commissionand the European Free Trade Association to provide a means of conforming to Essential Requirements of theNew Appro
18、ach Directive 89/686/EEC Personal Protective Equipment. Once this standard is cited in the Official Journal of the European Union under that Directive and has beenimplemented as a national standard in at least one Member State, compliance with the clauses of thisstandard given in Table ZA.1 confers,
19、 within the limits of the scope of this standard, a presumption ofconformity with the corresponding Essential Requirements of that Directive and associated EFTA regulations. Table ZA.1 Correspondence between this European Standard and Directive 89/686/EEC Clause(s)/sub-clause(s) of this European Sta
20、ndard Essential Requirements (ERs) of Directive 89/686/EEC Qualifying remarks/Notes 4.3.2 1.1.2.1. Highest level of protectionpossible ER not relevant for this type of PPE 4.1, 4.1.1 1.1.2.2. Classes of protection appropriate to different levels of risk ER not relevant for this type ofPPE. There is
21、only one level of risk. 4.2.1, 4.3.1 1.2.1. Absence of risks and otherinherent nuisance factors ER not relevant for this type of PPE. ER 1.2.1 should only be cited if there are risks of this typethat are not covered by 1.2.1.1 to 1.2.1.3 4.3.3 1.2.1.1. Suitable constituent materials Agreed 4.3.3 1.2
22、.1.2. Satisfactory surface condition of all PPE parts in contactwith the user Agreed 4.2.1 1.2.1.3. Maximum permissible userimpediment Agreed 4.3.1, 4.3.2 1.3.1. Adaptation of PPE to user morphology Agreed 5 1.4. Information supplied by the manufacturer Agreed, but to be checked in detail 4.3.2 2.3.
23、 PPE for the face, eyes and respiratory tracts ER 2.3 is relevant in this case (inparticular the 2ndparagraph), butis not addressed in 4.3.2. In factthere is no clause in ISO 12312-2that addresses optical neutrality. BS EN ISO 12312-2:2015EN ISO 12312-2:2015 (E) 5 Clause(s)/sub-clause(s) of this Eur
24、opean Standard Essential Requirements (ERs) of Directive 89/686/EEC Qualifying remarks/Notes 5 2.12. PPE bearing one or moreidentification or recognition marksdirectly or indirectly relating to health and safety ER 2.12 relates to markings onthe PPE itself. When looking at clause 5, this seems to be
25、 more about information thataccompanies the PPE (which is covered by ER 1.4). 4.1, 4.1.1, 5 3.9.1. Non-ionizing radiation ER 3.9.1 is the key requirement in this case. It is addressed by clause 4.1, not clause 5. ER 3.9.1 has also consequences for themarking, which are not yet addressed in this stan
26、dard. It should also be considered if thedimensions required in 4.3.2 aresufficient to cover this risk. WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling within thescope of this standard. BS EN ISO 12312-2:2015ISO 12312-2:2015(E)Foreword iv1 Scope . 12 N
27、ormative references 13 Terms and definitions . 14 Requirements and associated test methods 14.1 Transmittance 14.1.1 General 14.1.2 Uniformity of luminous transmittance . 24.2 Material and surface quality 24.2.1 Requirements . 24.2.2 Test method 24.3 Mounting 24.3.1 General 24.3.2 Dimensions . 24.3.
28、3 Material quality . 35 Labelling 3Annex A (informative) Use of filters for direct observation of the sun . 4Annex B (informative) Solar eclipse eye safety: Users guide236Bibliography .10 ISO 2015 All rights reserved iiiContents PageBS EN ISO 12312-2:2015ISO 12312-2:2015(E)ForewordISO (the Internati
29、onal 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
30、 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 standa
31、rdization.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 accordanc
32、e 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
33、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 endorseme
34、nt.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible
35、 for this document is ISO/TC 94, Personal safety Protective clothing and equipment, Subcommittee SC 6, Eye and face protection.ISO 12312 consists of the following parts, under the general title Eye and face protection Sunglasses and related eyewear: Part 1: Sunglasses for general use Part 2: Filters
36、 for direct observation of the suniv ISO 2015 All rights reservedBS EN ISO 12312-2:2015INTERNATIONAL STANDARD ISO 12312-2:2015(E)Eye and face protection Sunglasses and related eyewear Part 2: Filters for direct observation of the sun1 ScopeThis part of ISO 12312 applies to all afocal (plano power) p
37、roducts intended for direct observation of the sun, such as solar eclipse viewing.Information on the use of filters for direct observation of the sun is given in Annex A and Annex B.This part of ISO 12312 does not apply to the following:a) afocal (plano power) sunglasses and clip-ons for general use
38、 intended for protection against solar radiation;b) eyewear for protection against radiation from artificial light sources, such as those used in solaria;c) eye protectors specifically intended for sports (e.g. ski goggles or other types);d) sunglasses that have been medically prescribed for attenua
39、ting solar radiation;e) prescription sunglass lenses.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edi
40、tion of the referenced document (including any amendments) applies.ISO 12311:2013, Personal protective equipment Test methods for sunglasses and related eyewearISO 4007, Personal protective equipment Eye and face protection Vocabulary3 Terms and definitionsFor the purposes of this document, the term
41、s and the definitions given in ISO 4007 apply.4 Requirements and associated test methods4.1 Transmittance4.1.1 GeneralThe transmittance requirements of filters for the direct observation of the sun are given in Table 1. Transmittance values shall be measured or calculated at the boxed centre of the
42、filter for normal incidence, as described in ISO 12311:2013, 7.1.1, 7.1.2, 7.3.2, 7.3.3, and 7.5. ISO 2015 All rights reserved 1BS EN ISO 12312-2:2015ISO 12312-2:2015(E)Table 1 Transmittance requirements for filters for the direct observation of the sunMaximum luminous transmittance (v) 0,003 2 %Min
43、imum luminous transmittance (v) 0,000 061 %Maximum solar UVB transmittance (SUVB) vMaximum solar UVA transmittance (SUVA) vMaximum solar infrared transmittance (SIR) 3 %Uncertainty of measurements of transmittance shall not be greater than 25 % of the measured value.The measurement of spectral trans
44、mittance of filters with high optical density can be best accomplished with the use of a dual-beam spectrophotometer and comparison beam attenuators. The comparison beam attenuator should be a physical barrier, such as a perforated mesh, equivalent to a known uniform level of absorption across the e
45、ntire waveband of measurement.4.1.2 Uniformity of luminous transmittanceThe relative difference in the luminous transmittance value between any two points of the filter shall not be greater than 10 % (relative to the higher value). This requirement shall apply within a circle 40 mm in diameter aroun
46、d the boxed centre or to the edge of the filter less the marginal zone 5 mm wide, whichever is greater.4.2 Material and surface quality4.2.1 RequirementsExcept in a marginal area 5 mm wide, filters shall be free from defects likely to impair vision in use, such as bubbles, scratches, inclusions, dul
47、l spots, pitting, scouring, pocking, scaling, and undulations. Metal coated filter materials shall not exhibit more than one pinhole defect not greater than 200 m in average diameter within any 5 mm diameter circular zone.4.2.2 Test methodA filter shall be illuminated from one side by an intense whi
48、te light source (e.g. projector beam or light table) and the opposite side viewed through a low power magnifying lens. Metal coated filters showing visible pinhole defects shall be examined in a light microscope at 25 to 40 magnification.NOTE A magnifying lens of 4 to 10 magnification can be used.4.
49、3 Mounting4.3.1 GeneralFilters may be made with or without a mounting. If mounted, a filter shall be held securely so that it cannot be dislodged by normal handling or by gusts of wind. Mountings may be handheld or shaped in the form of spectacles to be worn on the face in front of any corrective (spectacle or contact) lenses worn by the user.4.3.2 DimensionsThe filter or filters and mounting assembly shall be of a size sufficient to cover both eyes of the user simultaneously and in no case shall have overall dimensions less than
