BS 8497-2:2008
$102.76
Eyewear for protection against intense light sources used on humans and animals for cosmetic and medical applications – Guidance on use
| Published By | Publication Date | Number of Pages |
| BSI | 2008 | 22 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | Contents Introduction 1 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Optical radiation hazards 2 5 Eye protection 3 6 User comfort and secondary safety issues 4 Annexes Annex A (informative) Ocular exposure to optical radiation 6 Annex B (informative) Retinal thermal hazard – Assessment flowchart 7 Annex C (informative) Retinal thermal hazard – Example calculation 8 Annex D (informative) Protective eyewear for the patient/client 12 Annex E (informative) Protective eyewear for the operator 13 Annex F (informative) Filter protection factor 14 Annex G (informative) Luminous transmittance 15 Annex H (informative) Colour perception of ILS protective eyewear – Example 16 Bibliography 17 List of figures Figure 1 – Hierarchy of control measures 3 Figure B.1 – Flowchart for the assessment of retinal thermal hazard 7 Figure C.1 – Decrease of the fluence with the distance away from IPLS A 8 Figure C.2 – Measured spectral exposure of IPLS A 0.2 m from the device 10 Figure C.3 – Excess of measured weighted radiance over retinal thermal ELV for IPLS A 11 Figure D.1 – Checklist for a selection of protective eyewear for the patient/client 12 Figure E.1 – Checklist for a selection of protective eyewear for the operator 13 Figure F.1 – Required level of eye protection on an ILS device that exceeds ELV by a factor of 10 15 Figure H.1 – Perceived colour of a white light viewed through a protective filter 16 List of tables Table C.1 – Calculated angular subtense a at different distances from IPLS A 9 Table C.2 – Retinal thermal ELV calculated at different distances from IPLS A 9 |
| 4 | Foreword |
| 5 | Introduction 1 Scope 2 Normative references 3 Terms and definitions 3.1 attenuation 3.2 exposure limit values (ELVs) 3.3 intense pulsed light source (IPLS) 3.4 ocular hazard distance (OHD) |
| 6 | 3.5 pulse duration 3.6 pulse separation 4 Optical radiation hazards 4.1 Risk assessment 4.1.2 The risk assessment should include the following. a) Determine the ELVs for exposure duration, type of hazard and emitting device configuration. b) Calculate the spectrally weighted radiance using the data provided by the manufacturer of the ILS equipment. If this information is not available, measure the actual spectral irradiance or spectral radiance. c) Compare the measured values with the ELVs. 4.2 Control measures |
| 7 | Figure 1 Hierarchy of control measures 5 Eye protection 5.1 Protective eyewear |
| 8 | 5.2 Filter protection factor (FPF) 5.3 Luminous transmittance and colour perception 6 User comfort and secondary safety issues 6.1 Peripheral leakage |
| 9 | 6.2 Secondary reflections from eyewear frame and filters 6.3 Quality of filters and clarity of vision 6.4 Exposure to bright flashes below ELVs 6.5 Overheating of eyewear 6.6 Additional considerations for active protective filters |
| 10 | Annex A (informative) Ocular exposure to optical radiation A.1 Exposure limit values (ELVs) A.2 Exposures below ELVs A.3 Example of an optical radiation hazard |
| 11 | Annex B (informative) Retinal thermal hazard – Assessment flowchart |
| 12 | Annex C (informative) Retinal thermal hazard – Example calculation |
| 16 | Annex D (informative) Protective eyewear for the patient/ client |
| 17 | Annex E (informative) Protective eyewear for the operator |
| 18 | Annex F (informative) Filter protection factor |
| 19 | Annex G (informative) Luminous transmittance |
| 20 | Annex H (informative) Colour perception of ILS protective eyewear – Example |
| 21 | Bibliography [1] EUROPEAN COMMUNITIES 2006/25/EC The Physical Agents (Artificial Optical Radiation) Directive. Luxembourg: Office for Official Publications of the European Communities, 2006. |
