EN 12254:2010

Screens for laser working places - Safety requirements and testing

This standard specifies functional requirements and a product labelling applicable to temporary and permanent passive guards (in the following called screens) for protection against laser radiation. This standard includes test methods for testing functional performance and the specification of the user documentation to be supplied with the product. The screens are designed to protect the user from:
-   unintentional exposure to direct and/or diffuse laser radiation;
-   a time limited exposure to laser radiation, based on the functional requirements determined by risk assessment.
This standard applies to supervised screens for installations in working places at which laser radiation up to a maximum mean power of 100 W or single pulse energy of 30 J occurs within the spectral range between 180 nm (0,18 µm) and 106 nm (1 000 µm).
This standard applies to the protection against laser radiation only. This standard does not apply to other hazards including hazards from secondary radiation that can arise during, for example, material processing.
This standard gives guidance on how to select such screens.
Laser enclosures and housings that are supplied as part of the laser product or are supplied to be fitted to a laser system to form a laser product (according to EN 60825-1) are not considered to be within the scope of the standard.

Abschirmungen an Laserarbeitsplätzen - Sicherheitstechnische Anforderungen und Prüfung

Diese Europäische Norm legt Anforderungen an die Funktion sowie eine Produkt Kennzeichnung für zeitweilige und permanente passive Schutzwände zum Schutz gegen Laserstrahlung (nachfolgend Abschirmungen genannt) fest. Diese Norm enthält Prüfverfahren für die Funktion und die Benutzerinformation, die mit dem Produkt zu liefern ist. Die Abschirmungen sind konstruiert, um den Benutzer zu schützen gegen:
   unbeabsichtigte Bestrahlung durch direkte und/oder gestreute Laserstrahlung;
   eine zeitlich begrenzte Laserbestrahlung auf der Grundlage der durch eine Risikobewertung festgestell¬ten funktionalen Anforderungen.
Diese Europäische Norm gilt für überwachte Abschirmungen für den Aufbau an Arbeitsplätzen, an denen Laserstrahlung mit maximal 100 W mittlerer Leistung oder 30 J Einzelimpulsenergie innerhalb des Spektralbereichs von 180 nm (0,18 µm) bis 106 nm (1 000 µm) eingesetzt wird.
Diese Europäische Norm gilt nur für den Schutz gegen Laserstrahlung. Sie gilt nicht für andere Gefahren einschließlich der Gefährdung durch Sekundärstrahlung, die beispielsweise während der Materialbearbeitung entstehen kann.
Diese Europäische Norm gibt eine Anleitung zur Auswahl solcher Abschirmungen.
Laserumschließungen und  gehäuse, die als Teil der Lasereinrichtung oder zum Anbau an ein Lasersystem geliefert werden, um eine Lasereinrichtung (nach EN 60825 1) zu bilden, werden nicht als Bestandteil des Anwendungsbereichs der Norm angesehen.

Écrans pour postes de travail au laser - Exigences et essais de sécurité

La présente Norme européenne spécifie les exigences fonctionnelles et l'étiquetage applicables aux protecteurs laser passifs, temporaires ou permanents (par la suite appelés écrans), destinés à la protection contre le rayonnement laser. La présente norme comprend des méthodes d'essai pour les performances fonctionnelles ainsi que des spécifications pour la documentation à fournir avec le produit. Les écrans sont conçus pour protéger l'utilisateur :
-   d’une exposition involontaire au rayonnement laser direct et/ou diffus ;
-   d’une exposition limitée dans le temps au rayonnement laser fondée sur les spécifications fonctionnelles déterminées par une analyse du risque.
La présente Norme européenne s'applique aux écrans surveillés pour les installations des postes de travail où le rayonnement laser atteint une puissance moyenne maximale de 100 W ou une énergie maximale d’impulsion de 30 J, dans le domaine spectral de 180 nm (0,18 m) à 106 nm (1 000 m).
La présente Norme européenne s'applique uniquement à la protection contre le rayonnement laser. Elle ne s'applique pas aux autres risques, y compris les risques dus au rayonnement secondaire qui peuvent apparaître, par exemple, pendant le traitement des matériaux.
En outre, la présente Norme européenne donne des indications pour le choix de tels écrans.
Les enceintes et capotages laser qui font partie d'un équipement laser, ou qui sont fournis pour être incorporés à un système laser et former un équipement laser (selon l’EN 60825-1) ne relèvent pas du domaine d’application de la présente norme.

Zasloni pri delu z laserji - Varovalne zahteve in preskušanje

Ta evropski standard opredeljuje funkcionalne zahteve in etiketiranje proizvodov, ki se uporablja za začasna in stalna pasivna varovala (v nadaljevanju: zasloni) za zaščito pred laserskim sevanjem. Ta standard zajema metode preskušanja za preskušanje funkcionalnega delovanja in specifikacijo dokumentacije za uporabnika, ki mora biti dobavljena s proizvodom. Zasloni so zasnovani za zaščito uporabnika pred: nenamerno izpostavljenostjo neposrednemu in/ali razpršenemu laserskemu sevanju; časovno omejeno izpostavljenostjo laserskemu sevanju, osnovano na funkcionalnih zahtevah, ki jih opredeljuje ocena tveganja. Ta evropski standard se uporablja za nadzorovane zaslone za objekte in naprave na delovnih mestih, kjer je lasersko sevanje do najvišje povprečne moči 100 W ali pulzirajoče enosmerne energije 30 J, v območju spektra med 180 nm (0,18 μm) in 106 nm (1 000 μm). Ta evropski standard se uporablja samo za zaščito pred laserskim sevanjem. Ta standard se ne uporablja za druge nevarnosti, vključno z nevarnostmi, ki izvirajo iz sekundarnega sevanja, do katerega lahko pride med, na primer predelavo materiala. Ta evropski standard podaja vodilo, kako izbrati takšne zaslone. Ograde in ohišja laserjev, ki so dobavljeni kot del laserskega proizvoda ali so dobavljeni z namenom, da bi bili pritrjeni na laserski sistem, s čimer tvorijo laserski proizvod (v skladu z EN 60825-1), se ne štejejo v področje uporabe tega standarda.

General Information

• Status: Published
• Publication Date: 23-Mar-2010
• ICS: 13.280 - Radiation protection
• ICS: 13.340.20 - Head protective equipment
• ICS: 31.260 - Optoelectronics. Laser equipment
• Technical Committee: CEN/TC 85 - Eye-protective equipment
• Drafting Committee: CEN/TC 85/WG 3 - Eye protectors against laser radiations
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 03-Jun-2020
• Completion Date: 03-Jun-2020
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: SIST EN 12254:2010 - Screens for laser working places - Safety requirements and testing

Relations

• Replaces: EN 12254:1998+A2:2008 - Screens for laser working places - Safety requirements and testing
• Effective Date: 19-Sep-2009
• Corrected By: EN 12254:2010/AC:2011 - Screens for laser working places - Safety requirements and testing
• Effective Date: 24-Oct-2011
• Revised: EN 12254:1998/A1:2002 - Screens for laser working places - Safety requirements and testing
• Effective Date: 22-Dec-2008
• Revised: EN 12254:1998 - Screens for laser working places - Safety requirements and testing
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Zasloni pri delu z laserji - Varovalne zahteve in preskušanjeAbschirmungen an Laserarbeitsplätzen - Sicherheitstechnische Anforderungen und PrüfungEcrans pour postes de travail au laser - Exigences et essais de sécuritéScreens for laser working places - Safety requirements and testing31.260Optoelektronika, laserska opremaOptoelectronics. Laser equipment13.340.20Varovalna oprema za glavoHead protective equipment13.280Varstvo pred sevanjemRadiation protectionICS:Ta slovenski standard je istoveten z:EN 12254:2010SIST EN 12254:2010en,fr,de01-junij-2010SIST EN 12254:2010SLOVENSKI
STANDARDSIST EN 12254:1999+A2:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12254
March 2010 ICS 13.280 Supersedes EN 12254:1998+A2:2008English Version
Screens for laser working places - Safety requirements and testing
Écrans pour postes de travail au laser - Exigences et essais de sécurité
Abschirmungen an Laserarbeitsplätzen - Sicherheitstechnische Anforderungen und Prüfung This European Standard was approved by CEN on 20 February 2010.
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, Croatia, 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 © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12254:2010: ESIST EN 12254:2010

Principles . 12A.1Limit values . 12A.2Time base used to calculate the MPE values . 12A.3Resistance to laser radiation . 12A.4Example test report . 14Annex B (informative)
Selection of screens for laser working places . 16B.1General . 16B.2Pulsed lasers . 16B.3Caution for users of laser safety screens . 17Annex C (informative)
Significant technical changes between this European Standard and the previous edition . 18Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 19Bibliography . 20 SIST EN 12254:2010

IEC 60050-845:1987, International Electrotechnical Vocabulary — Chapter 845: Lighting
4.2 Resistance to laser radiation The screens shall not lose their protective properties and shall stay within the scale number under effect of laser radiation with the power and energy density as specified in Table 2 including induced transmission (reversible bleaching). 4.3 Stability to UV radiation When exposed to ultraviolet radiation in accordance with 5.4.1, the spectral transmittance at the laser wavelengths shall not exceed the maximum permissible spectral transmittance of the corresponding scale number. 4.4 Stability to elevated temperature After exposure to elevated temperature in accordance with 5.4.2, the requirements of 4.1 to 4.2 shall be met. 4.5 Mechanical strength Flexible screens shall withstand for 10 s a tensile stress of 15 N/mm2 when tested according to 5.5.1. After this test, no sample shall be torn. Inflexible screens shall be robust in accordance to 7.1.4.2 of EN 166:2001. Fixing systems of screens shall be designed so that they remain attached to the screens or to the machinery when the screens are removed. SIST EN 12254:2010
...