Register your Class 1, 1M, 2, 2M, and 3R/3a laser(s) with IRM ( ionform.

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1 Due diligence is what we promote, risk management is what we support INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Quick Checklist: btain laser specifications o Laser class, power/energy per pulse, wavelength(s), beam diameter, beam div ergence, etc. btain manufacturer s user manual o Send copy to Laser Safety fficer [LS] (vphelan@ryerson.ca) egister your Class 1, 1M, 2, 2M, and 3/3a laser(s) with IM ( ionform.pdf) Complete a Laser Permit application for Class 3B and 4 lasers ( Laser Safety Training for all users o equired for Classes 3 (old 3a), 3B and 4 o ecommended for Classes 1, 1M, 2 and 2M Eye exams (baseline, prior to first laser use) o equired for Class 3B and 4 lasers Lab setup (determine and apply all necessary Engineering and Administrativ e Controls, purchase appropriate PPE) for Class 3B and 4 only see following pages for Guide Set up a lab v isit by LS once setup is complete - Class 3B and 4 only 350 Victoria Street, J-1118, Toronto, ntario, M5B 2K3 Tel: x 7096 Fax: cehsmadm@ryerson.ca Web:

2 Checklist Guide Laser Classification Laser classification is key to determining safety requirements. Laser Class is provided by the manufacturer (required by law). However, any in-house modifications made to a laser may change its classification (e.g., completely enclosing a laser system no beam accessible at all - can bring a Class 4 laser down to a Class 1). Your user manual must contain this information. In addition, the laser itself must have a label on it that includes this information, following are some examples of laser product labels: INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 2 of 8

3 The following table describes the meaning of each class: LASE CLASSIFICATIN TABLE (Class 1 is no hazard and Class 4 is highest hazard) Laser Class Description 1 Considered incapable of producing damaging radiation 1M 2 2M Considered incapable of producing damaging radiation, unless the beam is viewed with an optical instrument (eye-loupe, telescope, etc.) Emits in the visible range, eye protection is normally afforded by the natural aversion response Same as Class 2, but potentially hazardous if viewed with certain optical aids INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 3 of 8

4 3 or 3a (IIIa) 3B (IIIb) 4 (IV) Is potentially hazardous under some direct and specular reflection viewing condition if the eye is focused and stable small probability of actual injury Hazardous under direct and specular reflection viewing condition, but not after a diffuse reflection. Not a fire hazard Hazard to the eye and skin under direct, specular and diffuse reflection viewing conditions, maybe a fire hazard ( 10 W/cm 2 ), may also produce laser-generated air contaminants or hazardous plasma radiation Laser Safety Training All users must complete laser safety training prior to first use of laser. Each person shall contact the LS individually (vphelan@ryerson.ca). Eye Exams A baseline eye exam is required prior to use of any class 3B or 4 laser. Eye exams are reimbursed by each department. The ANSI standard for laser safety (Z136.1) says that examinations should be performed by an ophthalmologist or optometrist. The following types of tests are required: 1. cular history (including medical history, as some medications may be photosensitizing, etc.) 2. Visual acuity 3. Macular function 4. Colour vision If these are not normal, a fundus test would be required. To download the list of required tests and to learn more about reimbursement/payment for eye exams, look under "Medical Surveillance equirements" on the main Laser Safety Program web page ( INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 4 of 8

5 Lab Setup There are many Engineering and Administrative controls which must be in place for Class 3B and 4 lasers. The following tables provide some information on which measures are required, depending on whether laser is class 3B or 4: TABLE LEGEND -- equired -- ptional X -- No requirement NC -- No further controls required NHZ -- Nominal Hazard Zone analysis required (performed with LS*) *LS is the university's Laser Safety fficer (vphelan@ryerson.ca) INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 5 of 8

6 ENGINEEING CNTL MEASUES LASE CLASS 3B (IIIb) 4 (IV) Protective Housing (Protective housing is a physical barrier preventing laser radiation in excess of the MPE* from exiting the laser. The aperture through which the useful beam is emitted is not part of the protective housing. The protective housing limits access to other associated radiant energy emissions and to electrical hazards associated with the components and terminals, and may enclose associated optics and a workstation. Typically, the protective housing is provided by the laser manufacturer) Without Protective Housing LS to determine Interlocks on Protective Housing (An interlock system on the protective housing prevents access to the laser radiation above the MPE*. It is activated when the protective housing is opened during operation and maintenance. The interlock shall not be overridden during operation) Service Access Panel (Portion of protective housing that is only intended to be removed from laser or laser system by service personnel) Key Control (A key used to control the master switch, which effects beam termination and/or system shutoff) Viewing Portals (that reduce light below MPE*) (These windows allow safe viewing of experiment using interlocks, filters and/or attenuators) Collecting ptics (that reduce light below MPE*) (These include lenses, telescopes, microscopes, endoscopes, eye-loupes, etc. for viewing and must include interlocks, filters, and/or attenuators to provide safe viewing) Enclosed Beam Path NC Limited pen Beam Path NHZ NHZ Totally pen Beam Path NHZ NHZ emote Interlock Connector (The remote interlock connector, such as a Panic Button, deactivates or reduces the accessible radiation below the MPE on entry to a protected area) INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 6 of 8

7 ENGINEEING CNTL MEASUES LASE CLASS 3B (IIIb) 4 (IV) Beam Stop or Attenuator Activation Warning Systems (An audible system e.g. an alarm, a warning light the visible through protective eyewear, or a verbal countdown command during activation or start-up of the laser) Emission Delay X Labels Area Posting Indoor Laser Controlled Area Temporary Laser Controlled Area *MPE: Maximum Permissible Exposure. This is based on specific laser parameters as described in ANSI Z136.1 (2014) standard, such as wavelength, power or energy per pulse, beam diameter, beam divergence, colle cting optics, etc. TABLE LEGEND X NC NHZ -- equired -- ptional -- No requirement -- No further controls required -- Nominal Hazard Zone analysis required LS is the university's Laser Safety fficer (vphelan@ryerson.ca) ADMINISTATIVE AND PCEDUAL CNTL MEASUES LASE CLASS 3B (IIIb) 4 (IV) Standard perating Procedures utput Emission Limitations LS to determine Laser Worker Training Authorized Personnel Alignment Procedures INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 7 of 8

8 Eye Protection*, if MPE is exceeded Skin Protection, if MPE is exceeded Spectator Control Homebuilt/Modification of Laser Systems LS will classify *Eye protection must have appropriate D (ptical Density) for specific use parameters (wavelength, power or energy per pulse, beam diameter, beam divergence, collecting optics, etc.) TABLE LEGEND X NC NHZ -- equired -- ptional -- No requirement -- No further controls required -- Nominal Hazard Zone analysis required LS is the university's Laser Safety fficer (vphelan@ryerson.ca) First lab inspection nce the lab has been set-up, you may want to go through the following Laser Lab Inspection Checklist and schedule an inspection with the LS (vphelan@ryerson.ca) More information More information can be obtained on the IM website ( or by contacting the LS directly (vphelan@ryerson.ca) INFMATIN F PUCHASING AND/ SETTING UP A LASE LAB AT YESN Page 8 of 8