EN 208:2009

Personal eye-protection - Eye-protectors for adjustment work on lasers and laser systems (laser adjustment eye-protectors)

This European Standard applies to laser adjustment filters and eye-protectors. These are filters and eye-protectors for use in adjustment work on lasers and laser systems as defined in EN 60825-1:2007 where hazardous radiation occurs in the visible spectral range of 400 nm to 700 nm. Filters specified in this European Standard reduce this radiation to values defined for lasers of class 2 (<= 1 mW for CW (continuous wave) lasers).
This European Standard defines the requirements, test methods and marking. A guide is given in Annex B with regard to selection and use.
EN 207 applies to eye-protection against accidental exposure to laser radiation.
NOTE   Before selecting eye protection according to this European Standard a risk assessment should first be undertaken (see Annex B).

Persönlicher Augenschutz - Augenschutzgeräte für Justierarbeiten an Lasern und Laseraufbauten (Laser-Justierbrillen)

Diese Europäische Norm gilt für Laser Justierfilter und Laser Justierbrillen. Dies sind Filter und Augenschutz¬geräte zum Einsatz bei Justierarbeiten an Lasern und Laseraufbauten nach EN 60825 1:2007, bei denen gefährliche Strahlung im sichtbaren Spektralbereich zwischen 400 nm und 700 nm auftritt. Filter nach dieser Europäischen Norm reduzieren diese Strahlung auf Werte, die für Laser der Klasse 2 ( 1 mW für Dauer¬strichlaser) festgelegt sind.
Diese Europäische Norm legt die Anforderungen, Prüfverfahren und die Kennzeichnung fest. Einen Leitfaden für die Auswahl und Benutzung enthält Anhang B.
EN 207 gilt für Augenschutzgeräte gegen zufällige Einwirkung von Laserstrahlung.
ANMERKUNG   Bevor ein Augenschutz nach dieser Europäischen Norm ausgewählt wird, sollte zuerst eine Risikobewertung durchgeführt werden (siehe Anhang B).

Protection individuelle de l'œil - Lunettes de protection pour les travaux de réglage sur les lasers et sur les systèmes laser (lunettes de réglage laser)

La présente Norme européenne s'applique aux filtres et lunettes de réglage laser. Il s’agit de filtres et de lunettes de protection utilisés pour les travaux de réglage des lasers et des systèmes laser tels que définis dans l’EN 60825-1:2007 pour lesquels le rayonnement dangereux se produit dans le domaine spectral visible compris entre 400 nm et 700 nm. Les filtres relevant de la présente Norme européenne permettent une atténuation du rayonnement jusqu'aux valeurs spécifiées pour les lasers de la classe 2 (≤ 1 mW pour les lasers continus (CW)).
La présente Norme européenne définit les spécifications, les méthodes d'essai et le marquage. Des recommandations pour le choix et l’utilisation de lunettes de protection laser figurent dans l'Annexe B.
Les lunettes de protection contre l’exposition accidentelle au rayonnement laser sont traitées dans l’EN 207.
NOTE   Avant de choisir une protection de l'œil conforme à la présente Norme européenne, il convient de réaliser au préalable une évaluation du risque (voir Annexe B).

Osebno varovanje oči - Varovala za zaščito oči pri nastavljanju laserjev in laserskih sistemov (očala za nastavitev laserjev)

Ta evropski standard velja za filtre za nastavitev laserjev in varoval za zaščito oči. To so filtri in varovala za zaščito oči za uporabo pri nastavljanju laserjev in laserskih sistemov, kot je določeno v EN 60825-1:2007, kjer prihaja do škodljivega sevanja v vidnem območju spektra od 400 nm do 700 nm. Filtri, določeni v tem evropskem standardu, znižujejo sevanje do vrednosti, ki so določene za laserje razreda 2 (≤ 1 mW za CW (trajno valovanje) laserje). Ta evropski standard določa zahteve, preskusne metode in označevanje. Vodilo v zvezi z izbiro in uporabo je podano v Dodatku B.  EN 207 velja za očala za zaščito pred nezgodno izpostavljenostjo laserskemu sevanju.

General Information

• Status: Published
• Publication Date: 22-Dec-2009
• Withdrawal Date: 29-Jun-2010
• ICS: 13.340.20 - Head protective equipment
• Technical Committee: CEN/TC 85 - Eye-protective equipment
• Drafting Committee: CEN/TC 85/WG 3 - Eye protectors against laser radiations
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 03-Nov-2023
• Directive: 2016/425 - Regulation (EU) 2016/425 of the European Parliament and of the Council of 9 March 2016 on personal protective equipment and repealing Council Directive 89/686/EEC
• Directive: 89/686/EEC - Council Directive 89/686/EEC of 21 December 1989 on the approximation of the laws of the Member States relating to personal protective equipment
• Mandate: M/031 - Standardization mandate to CEN/CENELEC concerning standards for Personal Protective Equipment
• Ref Project: SIST EN 208:2010 - Personal eye-protection - Eye-protectors for adjustment work on lasers and laser systems (laser adjustment eye-protectors)

Relations

• Replaces: EN 208:1998 - Personal eye-protection - Eye-protectors for adjustment work on lasers and laser systems (laser adjustment eye-protectors)
• Effective Date: 08-Jun-2022
• Replaces: EN 208:1998/A1:2002 - Personal eye-protection - Eye-protectors for adjustment work on lasers and laser systems (laser adjustment eye-protectors)
• Effective Date: 26-Dec-2009

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2010
1DGRPHãþD
SIST EN 208:1999
SIST EN 208:1999/A1:2003
2VHEQRYDURYDQMHRþL9DURYDOD]D]DãþLWRRþLSULQDVWDYOMDQMXODVHUMHYLQ
ODVHUVNLKVLVWHPRYRþDOD]DQDVWDYLWHYODVHUMHY
Personal eye-protection - Eye-protectors for adjustment work on lasers and laser
systems (laser adjustment eye-protectors)
Persönlicher Augenschutz - Augenschutzgeräte für Justierarbeiten an Lasern und
Laseraufbauten (Laser-Justierbrillen)
Protection individuelle de l'oeil - Lunettes de protection pour les travaux de réglage sur
les lasers et sur les systèmes laser (lunettes de réglage laser)
Ta slovenski standard je istoveten z: EN 208:2009
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 208
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2009
ICS 13.340.20 Supersedes EN 208:1998
English Version
Personal eye-protection - Eye-protectors for adjustment work on
lasers and laser systems (laser adjustment eye-protectors)
Protection individuelle de l'œil - Lunettes de protection pour Persönlicher Augenschutz - Augenschutzgeräte für
les travaux de réglage sur les lasers et sur les systèmes Justierarbeiten an Lasern und Laseraufbauten (Laser-
laser (lunettes de réglage laser) Justierbrillen)
This European Standard was approved by CEN on 21 November 2009.

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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 208:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Requirements .4
3.1 Spectral transmittance of filters and frames .4
3.2 Luminous transmittance of filters .5
3.3 Resistance of filters and frames to laser radiation .5
3.4 Refractive values of filters and eye-protectors .6
3.5 Quality of material and surface of filters .6
3.6 Stability of filters and eye-protectors to ultraviolet radiation and to elevated temperature .6
3.7 Resistance of filters and frames to ignition by contact with hot surfaces .7
3.8 Field of vision of eye-protectors .7
3.9 Construction of filters .7
3.10 Construction of frames .7
3.11 Mechanical strength of eye-protectors.7
4 Testing .8
4.1 General .8
4.2 Spectral transmittance of filters and frames .9
4.3 Luminous transmittance of filters .9
4.4 Resistance of filters and frames to laser radiation .9
4.5 Refractive value of filters and eye-protectors .9
4.6 Quality of material and surface of filters . 10
4.7 Stability to UV radiation and stability to elevated temperature . 10
4.8 Resistance of filters and frames to ignition by contact with hot surfaces . 10
4.9 Field of vision of eye-protectors . 10
4.10 Determination of the protected range. 10
4.11 Frames . 10
4.12 Mechanical strength . 10
5 Information supplied by the manufacturer . 11
6 Marking . 11
Annex A (informative) Principle . 14
A.1 Class 2 lasers . 14
A.2 Beam reduction and time base . 14
A.3 Resistance to laser radiation . 14
A.4 Example test report . 16
Annex B (informative) Recommended use of laser adjustment eye-protectors . 18
B.1 General . 18
B.2 Continuous wave lasers . 18
B.3 Pulsed lasers . 19
Annex C (informative) Significant technical changes between this European Standard and the
previous edition . 21
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 89/686/EEC . 22
Bibliography . 23

Foreword
This document (EN 208:2009) has been prepared 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 June 2010, and conflicting national standards shall be withdrawn at
the latest by June 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 208:1998.
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.
The significant technical changes between this European Standard and the previous edition are detailed in
Annex C.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard applies to laser adjustment filters and eye-protectors. These are filters and eye-
protectors for use in adjustment work on lasers and laser systems as defined in EN 60825-1:2007 where
hazardous radiation occurs in the visible spectral range of 400 nm to 700 nm. Filters specified in this
European Standard reduce this radiation to values defined for lasers of class 2 (≤ 1 mW for CW (continuous
wave) lasers).
This European Standard defines the requirements, test methods and marking. A guide is given in Annex B
with regard to selection and use.
EN 207 applies to eye-protection against accidental exposure to laser radiation.
NOTE Before selecting eye protection according to this European Standard a risk assessment should first be
undertaken (see Annex B).
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.
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 207:2009, Personal eye-protection equipment — Filters and eye-protectors against laser radiation (laser
eye-protectors)
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 spectral transmittance values of the filters and the frames for the laser
wavelength shall be as given in Table 1.
Table 1 — Scale numbers, spectral transmittance and maximum laser power
Scale number Spectral transmittance CW and pulse Pulse lasers with
lasers with a a pulse duration
-9
Filter Frame
pulse duration of of > 10 s to
-4 -4
≥ 2 ×××× 10 s 2 ×××× 10 s
Maximum laser Maximum pulse
power energy
W J
-6
-2 -1 -1
RB 1 0,01 2 ×× 10
10 < τ (λ) ≤ 10 τ (λ) ≤ 10 ××
-3 -2 -2 -5
RB 2 0,1
10 < τ (λ) ≤ 10 τ (λ) ≤ 10 2 ×××× 10
-4
-4 -3 -3
RB 3 1 2 ×× 10
10 < τ (λ) ≤ 10 τ (λ) ≤ 10 ××
-5 -4 -4 -3
RB 4 10
10 < τ (λ) ≤ 10 τ (λ) ≤ 10 2 ×××× 10
-6 -5 -5 -2
RB 5 100
10 < τ (λ) ≤ 10 τ (λ) ≤ 10 2 ×××× 10

3.2 Luminous transmittance of filters
When tested in accordance with 4.3, the luminous transmittance of the filter relative to the D65 standard
illuminant (see ISO 11664-2:2007) shall be at least 20 %. However, luminous transmittance lower than
20 % can 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.
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) or energy density (H) as specified in
Table 2 for a period of at least 5 s and for 50 pulses in case of pulsed lasers. The values of energy density (H)
-1/4
for testing the resistance against laser radiation for pulsed lasers should be multiplied with the factor N ,
-9 -4
where N is the number of pulses in 5 s, if the pulse durations is between 10 and 2 × 10 s and the pulse
-1
series is fast (frequency > 0,1 s ). The eye-protector 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
neg
...