1、May 2017 English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.340.20!%eB“2663195www.din.deDIN E
2、N 207Personal eyeprotection equipment Filters and eyeprotectors against laser radiation (laser eyeprotectors);English version EN 207:2017,English translation of DIN EN 207:2017-05Persnlicher Augenschutz Filter und Augenschutzgerte gegen Laserstrahlung (Laserschutzbrillen);Englische Fassung EN 207:20
3、17,Englische bersetzung von DIN EN 207:2017-05Protection individuelle de loeil Filtres et protecteurs de loeil contre les rayonnements laser (lunettes de protection laser);Version anglaise EN 207:2017,Traduction anglaise de DIN EN 207:2017-05SupersedesDIN EN 207:201204www.beuth.deDocument comprises
4、30 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN 207:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN 207:2017) has been prepared by Technical Committee CEN/TC 85 “Eye protecti
5、ve equipment” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Feinmechanik und Optik (DIN Standards Committee Optics and Precision Mechanics), Working Committee NA 027-01-01 AA “Eye protective equipment”, Working Group “Eye protectors aga
6、inst laser radiations”. The DIN Standards corresponding to the International Standards referred to in this document are follows: ISO 11664-1:2007 DIN EN ISO 11664-1:2011-07 ISO 11664-2:2007 DIN EN ISO 11664-2:2011-07 Amendments This standard differs from DIN EN 207:2012-04 as follows: a) in B.3.1, t
7、he beam diameter has been limited; b) in Table B.2, two wavelength ranges have been merged; c) the standard has been editorially updated. Previous editions DIN 58215: 1974-09, 1985-10, 1986-01 DIN EN 207: 1993-12, 1998-12, 2002-12, 2010-04, 2012-04 National Annex NA (informative) Bibliography DIN EN
8、 ISO 11664-1:2011-07, Colorimetry Part 1: CIE standard colorimetric observers (ISO 11664-1:2007) DIN EN ISO 11664-2:2011-07, Colorimetry Part 2: CIE standard illuminants (ISO 11664-2:2007) EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 207 March 2017 ICS 13.340.20 Supersedes EN 207:2009English
9、 Version Personal eye-protection equipment - Filters and eye-protectors against laser radiation (laser eye-protectors) Protection individuelle de loeil - Filtres et protecteurs de loeil contre les rayonnements laser (lunettes de protection laser) Persnlicher Augenschutz - Filter und Augenschutzgerte
10、 gegen Laserstrahlung (Laserschutzbrillen) This European Standard was approved by CEN on 8 August 2016. 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.
11、 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 tr
12、anslation 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, Fin
13、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STAN
14、DARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 207:2017 EEN 207:2017 (E) 2 Contents Pa
15、ge European foreword . 5 1 Scope 6 2 Normative references 6 3 Requirements . 6 3.1 Spectral transmittance of filters and frames 6 3.2 Luminous transmittance of filters 6 3.3 Resistance of filters and frames to laser radiation . 7 Table 1 Scale numbers (maximum spectral transmittance and resistance t
16、o laser radiation) of the filters and/or eye-protectors against laser radiations 7 3.4 Refractive values of filters and eye-protectors 7 Table 2 Maximum refractive values of filters and eye-protectors with no corrective effect . 8 3.5 Quality of material and surface of filters 8 3.5.1 Material and s
17、urface defects . 8 3.5.2 Diffusion of light 8 3.6 Stability of filters and eye-protectors to ultraviolet radiation and elevated temperature 8 3.6.1 Stability to ultraviolet radiation 8 3.6.2 Stability at elevated temperature . 8 3.7 Resistance of filters and frames to ignition by contact with hot su
18、rfaces 9 3.8 Field of vision of eye-protectors 9 3.9 Construction of filters and frames 9 3.10 Mechanical strength of eye-protectors . 9 3.10.1 Basic requirement 9 3.10.2 Optional requirements 9 4 Testing . 9 4.1 General 9 Table 3 Test schedule for filters, frames and complete eye-protectors for pro
19、tection against laser radiation . 10 4.2 Spectral transmittance of filters and frames . 11 4.3 Luminous transmittance of filters . 11 4.4 Resistance of filters and frames to laser radiation 11 Table 4 Duration of test for filters and eye-protectors against laser radiation . 11 4.5 Refractive value o
20、f filters and eye-protectors . 12 4.6 Quality of material and surface of filters . 12 4.6.1 Material and surface defects 12 4.6.2 Diffusion of light . 12 4.7 Stability to UV radiation and stability to elevated temperature . 12 4.7.1 Stability to UV radiation 12 4.7.2 Stability to elevated temperatur
21、e 12 4.8 Resistance of filters and frames to ignition by contact with hot surfaces . 12 4.9 Field of vision of eye-protectors . 12 Figure 1 Example of test set-up for the measurement of field of vision 13 DIN EN 207:2017-05 EN 207:2017 (E) 3 4.10 Determination of the protected range 13 4.11 Frames 1
22、4 4.12 Mechanical strength 14 5 Information supplied by the manufacturer 14 6 Marking 14 6.1 Eye-protectors . 14 6.2 Filters 16 Annex A (informative) Principle 17 A.1 Limit values and time base 17 Table A.1 Simplified maximum permissible irradiation values for the cornea 17 Figure A.1 Comparison of
23、the limit values specified in EU 2006/25/EC and the simplified values of EN 207 18 A.2 Beam areas 18 A.3 Angle dependence 18 A.4 Example test report . 19 Table A.2 Test report 19 Annex B (informative) Recommendations for the use of laser radiation eye-protectors . 21 B.1 General . 21 B.2 Types of la
24、sers . 21 Table B.1 Recommended scale numbers for use of filters and eye-protectors against laser radiation 22 B.3 Determination of the scale numbers . 22 B.3.1 General . 22 B.3.2 Continuous wave laser (D) 23 B.3.3 Pulsed lasers (I, R), pulse duration 109s 23 B.3.3.1 General . 23 B.3.3.2 Calculation
25、 for the pulsed mode . 23 Table B.2 Periods of time Tibelow which energies of single pulses have to be added and maximum pulse repetition frequencies vmax= 1/Tifor the application of formula (B.4) . 24 B.3.3.3 Calculation for the average power . 24 B.3.4 Mode coupled lasers (M), pulse duration 1 400
26、 nm . 24 B.3.4.3 Calculation for the average power . 25 B.4 Time base. 25 B.5 Filters in appliances. 25 DIN EN 207:2017-05 EN 207:2017 (E) 4 Annex C (informative) Significant technical changes between this European Standard and the previous editions 26 Annex ZA (informative) Relationship between thi
27、s European Standard and the essential requirements of Directive 89/686/EEC aimed to be covered . 27 Table ZA.1 Correspondence between this European Standard and Directive 89/686/EEC 27 Bibliography . 28 DIN EN 207:2017-05 EN 207:2017 (E) 5 European foreword This document (EN 207:2017) has been prepa
28、red by 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 September 2017, and conflicting national
29、 standards shall be withdrawn at the latest by September 2017. 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 207:2009.
30、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 89/686/EEC. For relationship with EU Directive 89/686/EEC, see informative Annex ZA, which is an integral part of this
31、document. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, F
32、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 207:2017-05 EN 207:2017 (E) 6 1 Scope This European Standard a
33、pplies to eye-protectors used for protection against accidental exposure to laser radiation as defined in EN 60825-1:2007 in the spectral range 180 nm (0,18 m) to 1 000 m. It defines the requirements, test methods and marking. A guide is given in the informative Annex B for the selection and use of
34、laser eye-protectors and filters in appliances. This European Standard does not apply to protectors for intentional exposure to laser radiation. EN 208 applies for laser adjustment eye-protectors. Before selecting eye protection according to this European Standard, a risk assessment should first be
35、undertaken (see Annex B). 2 Normative references The 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 edition of the referenced doc
36、ument (including any amendments) applies. EN 166:2001, Personal eye-protection - Specifications EN 167:2001, Personal eye-protection - Optical test methods EN 168:2001, Personal eye-protection - Non-optical test methods EN 60825-1:2007, Safety of laser products - Part 1: Equipment classification and
37、 requirements (IEC 60825-1:2007) ISO 11664-1:2007, Colorimetry - Part 1: CIE standard colorimetric observers ISO 11664-2:2007, Colorimetry - Part 2: CIE standard illuminants 3 Requirements 3.1 Spectral transmittance of filters and frames When tested according to 4.2, the maximum spectral transmittan
38、ce at the wavelength(s) or in the wavelength range(s) of protection shall not exceed the values specified in Table 1 for the applicable scale number. 3.2 Luminous transmittance of filters When assessed in accordance with 4.3, the luminous transmittance of the filter relative to the D65 standard illu
39、minant (see ISO 11664-2:2007) shall be at least 20 %. However, luminous transmittance lower than 20 % may be accepted provided that the manufacturer supplies information related to the increase of the intensity of illumination at the relevant workplace in accordance with Clause 5. DIN EN 207:2017-05
40、 EN 207:2017 (E) 7 3.3 Resistance of filters and frames to laser radiation When tested according to 4.4, the filters and frames shall meet the requirements of 3.1 and shall not lose their protective effect under the influence of laser radiation of the power (E)/ energy density (H) as specified in Ta
41、ble 1 and shall not show any induced transmission (reversible bleaching). No splinters shall come away from the side of the filter facing the eye under the influence of the laser radiation. Any melting or other damage of the surface during the course of irradiation is not considered negative if the
42、protective effect is still maintained. Table 1 Scale numbers (maximum spectral transmittance and resistance to laser radiation) of the filters and/or eye-protectors against laser radiations Maximum spectral transmittance at the laser wavelength Power (E) / energy density(H) for testing the protectiv
43、e effect and resistance to laser radiation in the wavelength range 180 nm to 315 nm 315 nm to 1 400 nm 1 400 nm to 1 000 m For test condition/pulse duration in seconds (s) Scale number D 3 104 I, R 109to 3 104M 5 104I, R 109to 5 104M 0,1 I, R 109to 0,1 M 106to 0,25 109to 10660 %, and then stored for
44、 at least 2 h at room temperature. 4.8 Resistance of filters and frames to ignition by contact with hot surfaces The test shall be carried out in accordance with Clause 7 of EN 168:2001. 4.9 Field of vision of eye-protectors For measuring the field of vision, the test head specified in EN 168:2001 w
45、ith the eye-protector without filters shall be mounted as shown in the example of set up illustrated in Figure 1 so that the two axes of rotation A and B and the optical axis C intersect in the middle of the front surface of one eye. Irradiation is provided by a laser beam of diameter (1 0,5) mm alo
46、ng axis C. When rotated around axis A, the DIN EN 207:2017-05 EN 207:2017 (E) 13 difference in the angular positions at which the light beam no longer hits the eye gives the vertical field of vision. By rotating around axis B, the difference between the angular position at which the light beam no lo
47、nger hits the eye and the line of vision of the test head parallel to the optical axis C gives half the horizontal field of vision. Other methods are permissible if they give identical results. Key 1 Laser A, B, C Axis (see text) Figure 1 Example of test set-up for the measurement of field of vision
48、 4.10 Determination of the protected range Using the apparatus as given in 4.9 the scan shall verify that the eye-protector covers at least the range as defined by the limits uand l. DIN EN 207:2017-05 EN 207:2017 (E) 14 4.11 Frames 4.11.1 It shall be tested by means of manual and visual inspection
49、whether the filters are interchangeable. 4.11.2 The test shall be carried out using the method given in 4.9. The zero values of the angles and are reached when the axis A, B and C of the test apparatus are perpendicular to each other. 4.12 Mechanical strength The test shall be carried out in accordance with Clause 4 of EN 168:2001. 5 Information supplied by the manufacturer In addition to the requirements of EN 166:2001, Claus
