Laser safety is a key technology in modern manufacturing processes. Lasers are arguably one of the greatest inventions of the 20th century. Once described as “a solution in search of a problem,” lasers are used in every aspect of life today, from signalling, telecommunications, and range finding to surveying, surgery, and testing. They come in picowatt to megawatt sizes and in infrared (IR), visible, and ultraviolet (UV) varieties.
Hand-held laser welding is a growing application for high-powered lasers, offering excellent weld quality and the ability to use laser welding in difficult-to-reach locations. However, it comes with significant risk, as the welder works with an open Class 4 beam. A sound laser safety program, training and the use of a laser-controlled area are required.
Whether you are integrating lasers in equipment, building lasers from scratch, conducting research or using them in your daily operations, you need to be aware of the hazards specific to your laser and application.
How can we helpyou?
We offer industrial laser safety analysis following ANSI Z136 or IEC 60825–1. You will receive a laser hazard analysis report that will give you key information, like the Nominal Optical Hazard Distance (NOHD), the Nominal Hazard Zone (NHZ), and the Optical Density (OD) for protective eyewear.
If you need assistance with safeguarding, we can help you with recommendations for the types of protective measures needed to reduce the risk to you or your employees.
If you are selling a laser product in the USA, we can also help you prepare your initial report to the FDA’s Center for Diseases and Radiological Health (CDRH). Every laser sold in the USA, from the smallest laser pointer to the multi-megawatt lasers used in fusion reactor research, is required to have a CDRH filing.
Services we do notoffer
We do not offer laser or optical design services.
We do not offer the optical testing services needed to characterize a laser initially.
We do not offer laser safety products, like eyewear, temporary barriers, etc. We can recommend sources for these products.
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Laser Safety Regulations
There are a number of key regulations and standards in force today. In Canada, the general machinery safety regulations in each province require that employers protect workers from hazards created by the machines and processes that they use. Federal regulations place similar requirements on Federally regulated businesses as well. Lasers are regulated under theRadiation Emitting Devices Actand theCanada Occupational Health and Safety Regulations. Lasers must be reported to theConsumer and Clinical Radiation Protection Bureau.
In the USA, the FDA regulates lasers through theCenter for Devices and Radiological Health (CDRH). Lasers and laser products sold in the USA must be registered with the CDRH and must meet theOSHA regulationsfor laser safety. There are different requirements for medical and non-medical lasers.
In the EU, lasers are covered under a number of directives, including 98/37/EC Machinery and the new edition of the same directive, 2006/42/EC , the Low Voltage Directive 2006/95/EC, and the EMC Directive, 2004/108/EC.
Laser Safety Standards
Canada
In Canada, the general standard for laser safety isCAN/CSA E60825‑1. For healthcare applications, the standard isCSA Z386where the laser is used in a healthcare facility (i.e. a surgical laser), and isCAN/CSA-C22.2 NO. 60601–2‑22–01for medical equipment applications. There are additional standards that pertain to the electrical shock and fire safety of these products aswell.
USA
In the USA, the general standard for laser safety isANSI Z136.1. There are a number of additional parts of ANSI Z136 that may also apply to your application. This standard is being replaced by IEC 60825–1 as ANSI harmonized with the International Community.
In addition,NFPA 115deals with fire protection in lasers and laser installations. The CDRH also publishes a laser standard,21 CFR 1040.10. Lasers intended to be marketed in the USA must meet the CDRH requirements and be registered with the CDRH before they can can be marketed.
For industrial applications,ANSI B11.21applies to machinery incorporating lasers.
EU
In the EU, the primary laser safety standard is EN IEC 60825–1. In addition, the following standards may be applicable to your application:
- EN ISO 11145:2006 Optics and photonics — Lasers and laser-related equipment — Vocabulary and symbols (ISO 11145:2006)
- EN ISO 11252:2004 Lasers and laser-related equipment — Laser device — Minimum requirements for documentation (ISO 11252:2004)
- EN ISO 11553–1:2005 Safety of machinery — Laser processing machines — Part 1: General safety requirements (ISO 11553–1:2005)
- EN ISO 11553–2:2007 Safety of machinery — Laser processing machines — Part 2: Safety requirements for hand-held laser processing devices (ISO 11553–2:2007)
- EN ISO 11554:2006 Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2006)
- EN 12254:1998 + A2:2008 Screens for laser working places — Safety requirements and testing
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