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BS EN IEC 62471-6:2023

BS EN IEC 62471-6:2023

$198.66

Photobiological safety of lamps and lamp systems – Ultraviolet lamp products

Published By Publication Date Number of Pages
BSI 2023 54
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This Standard provides the optical radiation safety requirements for ultraviolet lamp products, including UV LED products. This standard provides requirements for: – optical radiation safety assessment and ultraviolet-product risk groups; – user information for safety measures; – appropriate labelling of ultraviolet lamp products This standard addresses those lamps and lamp products where the ultraviolet emission serves the primary purpose of the product and where more than half of the optical radiation emitted between 180 nm – 3 000 nm is in the spectral region 180 nm – 400 nm. If more than half of the optical radiation emitted between 180 nm – 3 000 nm is outside of the spectral region 180 nm – 400 nm, then the base standard IEC 62471-1 should be used. This standard covers medical diagnostic devices/products that emit primarily UV radiation. Because photobiological effects from UV radiation are based on the total accumulated exposure (dose) received, this standard relies on the concept of ā€˜Time-weighted Averageā€™ exposures where the assessment distance for determining the RG is chosen based on realistic exposure distances and exposure durations. In other words, it is not expected that people will be exposed at very close distances, e.g. 20 – 30 cm, for extended periods of time. This standard is needed to provide assessment distances and specific guidance that are application-specific and realistic rather than the more general values in IEC 62471 where the specific application is unknown and time-weighted average exposures are not application-specific. This Standard does not provide requirements for: – lamps which primarily emit visible and/or infrared radiant energy – lamp products used for general lighting or infrared illumination or heating, which are treated in separate standards. – fluorescent ultraviolet lamps for tanning (covered by IEC 60335-2-27 and IEC 61228). – medical treatment devices/products (see IEC 60601-2-57), but covers UV medical diagnostic products.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 English
CONTENTS
7 FOREWORD
9 INTRODUCTION
10 1 Scope
2 Normative references
11 3 Terms and definitions
14 4 Risk groups applied for ultraviolet lamp-product safety assessments
4.1 Basis for optical radiation safety risk group determination
4.2 Assessment criteria (background) for UV lamp products
15 5 Measurements to determine applicable risk group
5.1 General
16 5.2 Time-weighted averaged irradiance
5.3 Risk group assessment conditions
5.3.1 Maximum output conditioning
Tables
Table 1 ā€“ Emission limits for risk groups for time-weighted averaged irradiance
17 5.3.2 Measurement and assessment distances for UV lamp products
5.3.3 Risk-group assessment distances
18 Table 2 ā€“ Risk group assessment distances for unrestricted-usea products
19 Table 3 ā€“ Risk group assessment distances for restricted-useproducts intended to be used by instructed persons
20 5.3.4 Dose-limited products
5.3.5 Products intended to expose the skin or eyes
6 Engineering requirements for RG-2 and RG-3 ultraviolet systems
6.1 General
Table 4 ā€“ Risk group assessment distances for lamps or lampproducts intended for use by professional, competent persons
21 6.2 Protective housing
6.2.1 General
6.2.2 Enclosures
6.2.3 Openings, panels and doors
6.3 RG-2 and RG-3 products
6.3.1 General
22 6.3.2 Proximity sensor
6.3.3 Orientation control
6.3.4 Upper-room germicidal UV luminaire alignment
6.3.5 Delayed-ON timer
6.3.6 Exposure time control / auto-shutoff
6.4 Emission warning
23 6.5 Reliability
6.6 Emission controls
6.6.1 General
6.6.2 Emissions stop
6.6.3 Key control
7 Information and labelling ā€“ Manufacturerā€™s requirements
7.1 General
24 7.2 User information
7.3 Labelling on UV lamps
7.4 Labelling on UV lamp products
7.4.1 RG-0 UV lamp products
7.4.2 RG-1 UV lamp products
7.4.3 RG-2 UV lamp products
25 7.4.4 RG-3 UV lamp products
7.5 User manual
7.5.1 General
7.5.2 Risk reduction measures
Figures
Figure 1 ā€“ Based on graphic 6040 of UV lamp inside triangle from IEC 60417
Figure 2 ā€“ Alternative labels to provide added information for narrow-band UV lamps
26 7.5.3 Limited use
7.6 Maintenance and service
27 Annex A (informative)Typical applications of UV lamp products
A.1 Background
A.2 Applications of UV lamp products
A.2.1 Near-UV (UV-A) ā€œblack-lightā€ sources to view fluorescent pigments
A.2.2 Near-UV (UV-A) insect attractant lamp products
28 A.2.3 UV germicidal (UV-C) lamp products
A.2.4 UV nail curing and treatment
29 A.2.5 UV medical and dental sources
30 Annex B (informative)Potentially hazardous biological effects
B.1 Background
B.2 Adverse acute biological effects from ultraviolet irradiation
B.2.1 Photokeratitis and photoconjunctivitis
31 B.2.2 UV-Cornea reference documents
B.2.3 Erythema (sunburn)
B.2.4 Erythema reference documents
32 B.3 Adverse biological effects from chronic exposure to ultraviolet irradiation
B.3.1 Skin cancer
Figure B.1 ā€“ CIE standard action spectrum for NMSC
33 B.3.2 Skin cancer reference documents
B.3.3 Pterygium and pinguecula
B.3.4 Pterygium and pinguecula reference documents
Figure B.2 ā€“ Semi-logarithmic comparison of three action spectra (ICNIRP S(Ī»): solid line; McKinlay, Diffey erythema : dashed; NMSC: dots)
34 B.3.5 Cataract
B.3.6 Cataract reference documents
B.3.7 Labrador keratopathy
B.3.8 Corneal reference documents
35 B.3.9 Visual effects from UV-A exposure ā€“ Lens fluorescence
B.3.10 Photoretinitis ā€“ or photic maculopathy (blue light hazard)
36 B.3.11 Retinal-photochemical biological effects reference documents
37 Annex C (informative)Measurement of ultraviolet lamp products
C.1 General
C.2 Radiometers
C.3 Spectroradiometers
38 C.4 Entrance optic
Figure C.1 ā€“ Geometry of irradiance / spectral irradiance measurements
39 C.5 Spectroradiometer- radiometer approach
C.6 Measurement distance versus assessment distance
C.6.1 General
40 C.7 Reference documents
41 Annex D (informative)Spectral weighting function S(Ī») from 180 nmto 400 nm for assessing actinic radiation hazard
Table D.1 ā€“ Spectral weighting function S(Ī») values at 1 nm intervals
44 Annex E (informative)Examples of risk group classification applying the conceptof TWA of a spectrally-weighted emission
E.1 Spectral weighting to determine effective irradiance using S(Ī»)
E.2 Time weighting of an exposure
45 Figure E.1 ā€“ Example of how an occupational hygienist mightdetermine different zones of exposure by time-weighting
46 Figure E.2 ā€“ Time-weighted averaging (TWA) over an 8 h period
47 E.3 Field radiometric measurements for final acceptance testing of a GUV installation
Figure E.3 ā€“ Field GUV safety meter with 80Ā° full field of view
48 Annex F (informative)Upper room GUV ā€“ Background and rationale to achieve safety
F.1 General
F.2 Product goals
F.3 Product test measurement conditions
F.3.1 General
49 F.3.2 Elevation plane for radiometric measurements
F.3.3 Test grid for measurements
F.3.4 Detector acceptance angle (field-of-view)
F.3.5 Instrument performance specifications
F.4 GUV luminaires
F.4.1 Adjustable UV luminaires
F.4.2 Interlock safeguards on removable baffles
50 F.4.3 Labelling requirements
F.4.4 Efficacy and information for the user
F.5 Acceptance testing
F.5.1 Scope of the installation acceptance testing
F.5.2 Time-weighted averaging
F.6 Reference documents
52 Bibliography

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BS EN IEC 62471-6:2023
$198.66