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Laser devices – control checklist

Initial inspection

Laser device name
Laser safety class
Application
No. / name of room where the device is located
Date of assessment
Expected date of next assessment
Name of the assessment official

No.	Control question	Yes	No	Not applicable / comments
Information in the safe operation manual for the laser device
1	Did the manufacturer provide the safe operation manual for the laser device?
2	Does the manual contain information about preventing exposure to laser radiation?
3	Does the manual contain a list of temporal-energetic parameters of the radiation generated by the laser device (wavelength, power, energy, operation mode, etc.)?
4	Does the manual contain clear reproductions of all warning labels which should be found on the device?
5	Does the manual contain information about the locations of output apertures on the enclosure of the device?
6	Does the manual contain a list of adjustment and control activities as well as laser device operation and maintenance procedures?
7	Does the manual indicate the need to use protective goggles?
8	Does the manual contain a list of the required parameters of protective filters for the protective goggles or parameters of the laser beam (power/energy density, laser operation mode) to enable the correct selection of goggles?
Personal and collective protective equipment
9	Does the device have a protective enclosure?
10	Is the protective enclosure fitted with a safety interlocking system (electromagnetic breaker for cover removal)?
11	Does the laser device have a remote control feature?
12	Is the device started with a key?
13	Is the device equipped with a system informing about the emission of radiation by the laser device or condenser charging (visual or acoustic)? Applicable to laser devices class 3R (for the wavelength below 400 nm and over 700 nm), 3B and 4.
14	Is the device equipped with a beam suppressor or limiter (for temporary blocking of the beam, independently from the on/off switch)?
15	Is the device equipped with a beam position adjustment control (without risk of employee exposure to the laser radiation)?
16	Is the device equipped with additional shield / protective screens around the laser radiation emission area?
17	Are there additional collective protection measures applied (additional interlocks, light curtains, etc.)?
18	Did the manufacturer provide protective goggles appropriate for the parameters of the emitted laser radiation?
18	If the manufacturer did not provide the goggles, is the station equipped with appropriately selected protective goggles?
19	Are the goggles marked according to PN-EN 207?
20	Is the number of the goggles sets the same as the number of employees operating the station?
21	Are the goggles stored in appropriately marked locations, available for employees operating the laser device?
22	Have the employees been informed about the requirement to use protective goggles during the performance of specific work activities with possible exposure to laser radiation?
Labels on the laser device
23	Is the label appropriate for the laser class affixed in a visible location on the device, according to PN-EN 60825-1?
24	Is the label with information about the laser type, wavelength, radiation power/energy and operation mode affixed in a visible location on the device?
25	Is the laser radiation warning label affixed in a visible location on the device, near the laser beam output?
26	Is the laser output opening label affixed in a visible location on the device class 3R, 3B or 4, near the laser beam output? “LASER OUTPUT OPENING” or “LASER RADIATION OUTPUT OPENING” or “AVOID EXPOSURE – LASER RADIATION IS EMITTED FROM THIS OPENING”
27	Is an appropriate label, in accordance with PN-EN 60825-1 affixed in a visible location on the access panel (service input)? Examples CAUTION – CLASS 3B LASER RADIATION ON OPENING AVOID THE LASER BEAM CAUTION – CLASS 4 LASER RADIATION ON OPENING PROTECT EYES AND SKIN AGAINST DIRECT AND DIFFUSED RADIATION
28	Is the interlock disconnection label with additional line in the access panels label (item 24) affixed in a visible location on the device, near the opening resulting from the removal of the protective cover? “AND DISCONNECTED INTERLOCKS”
29	Is the label warning against invisible laser radiation affixed in a visible location on the device if the length of the emitted wave is outside the range of 400–700 nm? “INVISIBLE LASER RADIATION”
Labels near the laser device or on room doors
30	Are there labels informing about the risk of eyes/skin exposure to laser radiation affixed near the laser device or on the door to the room with the laser device? CAUTION! LASER DEVICE CAUTION! VISIBLE AND INVISIBLE LASER RADIATION PROTECT EYES AND SKIN AGAINST DIRECT AND DIFFUSED RADIATION
General safety principles for laser devices
31	Is the laser device equipped with an integrated optical system (observation window, display screen)?
32	Is the optical system equipped with appropriate beam suppression?
33	Are there any reflective elements located near the laser beam emission?
34	Is the laser used according to the manual provided by the manufacturer, without any covers, interlocks, etc. dismantled?
35	If the laser is not used according to the manual provided by the manufacturer or with covers, interlocks, etc. dismantled – was the laser class reevaluated?
36	Are the electrical safety requirements met?
37	Are the fire and explosion safety requirements met? (It pertains mostly to class 4 lasers)
38	Are the harmful chemical substances emission safety requirements met?
Assessment of the level of reflected laser radiation
39	Was the level of reflected or diffused laser radiation assessed during normal operation of the laser device (by measurement or based on the data provided by the manufacturer, it pertains to class 3B or 4 lasers and other laser classes if not used according to manufacturer guidelines)?
40	Were the MAE values related to laser radiation determined for employees operating the laser device (including the time of potential employee exposure in addition to the temporal-energetic properties of the beam)?
41	Was the multiplicity (k) of the level of exposure in relation to the MAE value determined?
42	Was the date of the next measurement of reflected radiation set based on the MAE multiplicity (if it was set based on the measurement results)?
43	If the resulting multiplicity was k>1, were immediate actions taken to limit the exposure level?
Total
Conclusions from the assessment for further actions: Signature of the assessment official

Laser devices – periodical inspection control checklist

Laser device name
Laser safety class
Application
No. / name of room where the device is located
Date of previous assessment
Date of assessment
Expected date of next assessment
Name of the assessment official

No.	Control question	Yes	No	Not applicable / comments
Corrective actions resulting from the previous assessment of the device
1	Were all the corrective actions resulting from the previous assessment of the device completed?
General safety principles
2	Does the device have a valid technical (service) inspection certificate?
3	Do the safety interlocks work without issues?
4	Is the laser used according to the manual provided by the manufacturer, without any access panels, covers, interlocks, etc. dismantled?
5	If the laser is not used according to the manual provided by the manufacturer or with covers, interlocks, etc. dismantled – was the laser class reevaluated?
6	Are there any reflective elements located near the laser beam emission?
Labels on and near the laser device
7	Are the warning and explanation labels on the device undamaged and clearly visible?
8	Are the labels near the laser device or on room doors undamaged and clearly visible?
Personal and collective protective equipment
9	Are the shields or other protective equipment undamaged and in good working order?
10	Are the safety goggles undamaged?
Assessment of the level of reflected laser radiation
11	Was the level of reflected or diffused laser radiation assessed during normal operation of the laser device (it pertains to class 3B or 4 lasers and other laser classes if not used according to manufacturer guidelines)?
12	Were the MAE values related to laser radiation determined for employees operating the laser device (where the time of potential employee exposure or the temporal-energetic properties of the beam changed)?
13	Was the multiplicity (k) of the level of exposure in relation to the MAE value determined?
14	Was the date of the next measurement of reflected radiation set based on the MAE multiplicity?
15	If the resulting multiplicity was k>1, were immediate actions taken to limit the exposure level?
Total
Conclusions from the assessment for further actions: Signature of the assessment official

Laser devices – special inspection control checklist

Laser device name
Laser safety class
Applications
No. / name of room where the device is located
Date of last inspection
Date of assessment
Expected date of next assessment
Name of the assessment official

No.	Control question	Yes	No	Not applicable / comments
Potential reasons for special inspection
1	Did the accident occur in relation to the emission of laser radiation?
2	Did the accident occur in relation to other hazards present during laser operation?
3	Were any changes introduced to the technological process related to the changes in laser beam parameters?
4	Were new protection equipment or shields installed?
5	Were protection equipment or access panels, etc. dismantled?
6	Was the machine location changed?
7	Other reason: ......................................................................
Personal and collective protective equipment
8	Does the device have a protective enclosure installed?
9	Does the safety interlocking system in the protective enclosure operate correctly?
10	Does the remote control system for the laser device operate correctly?
	Does the system informing about the emission of radiation by the laser device or condenser charging (visual or acoustic) operate correctly? It is applicable to laser devices class 3R (for the wavelength below 400 nm and over 700 nm), 3B and 4.
	Does the beam suppressor or limiter operate correctly?
15	Does the beam position control system operate correctly?
16	Are the additional shield / protective screens around the laser radiation emission area installed and undamaged?
17	Does the additional collective protection measures applied (additional interlocks, light curtains, etc.) operate correctly?
18	Is the number of the goggles sets the same as the number of employees operating the station?
18	Are the goggles stored in appropriately marked locations, available for employees operating the laser device?
19	Have the employees been informed about the requirement to use protective goggles during the performance of specific work activities with possible exposure to laser radiation?
20	Are the safety goggle undamaged?
Labels on the laser device
21	Are the warning and explanation labels on the device undamaged and clearly visible?
22	Are the labels near the laser device or on room doors undamaged and clearly visible?
23	Is the interlock disconnection label with additional line in the access panels label (item 24) affixed in a visible location on the device, near the opening resulting from the removal of the protective cover? “AND DISCONNECTED INTERLOCKS”
24	Is the label warning against invisible laser radiation affixed in a visible location on the device if the length of the emitted wave is outside the range of 400–700 nm? “INVISIBLE LASER RADIATION”
General safety principles for laser devices
25	Is the optical system equipped with appropriate beam suppression?
26	Are there any reflective elements located near the laser beam emission?
27	Is the laser used according to the manual provided by the manufacturer, without any access panels, covers, interlocks, etc. dismantled?
28	If the laser is not used according to the manual provided by the manufacturer or with covers, interlocks, etc. dismantled – was the laser class reevaluated?
29	Are the electrical safety requirements met?
30	Are the fire and explosion safety requirements met (it pertains mostly to class 4 lasers)?
31	Are the harmful chemical substances emission safety requirements met?
Assessment of the level of reflected laser radiation
32	Was the level of reflected or diffused laser radiation assessed during normal operation of the laser device (it pertains to class 3B or 4 lasers and other laser classes if not used according to manufacturer guidelines)?
33	Were the MAE values related to laser radiation determined for employees operating the laser device (if the time of potential employee exposure or the temporal-energetic properties of the beam changed)?
34	Was the multiplicity (k) of the level of exposure in relation to the MAE value determined?
35	Was the date of the next measurement of reflected radiation set based on the MAE multiplicity?
36	If the resulting multiplicity was k>1, were immediate actions taken to limit the exposure level?
Total
Conclusions from the assessment for further actions: Signature of the assessment official