02006L0025 — EN — 26.07.2019 — 004.001

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Amended by:









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DIRECTIVE 2006/25/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL

of 5 April 2006

on the minimum health and safety requirements regarding the exposure of workers to risks arising from physical agents (artificial optical radiation) (19th individual Directive within the meaning of Article 16(1) of Directive 89/391/EEC)







SECTION I

GENERAL PROVISIONS

Article 1

Aim and scope

1. This Directive, which is the 19th individual Directive within the meaning of Article 16(l) of Directive 89/391/EEC, lays down minimum requirements for the protection of workers from risks to their health and safety arising or likely to arise from exposure to artificial optical radiation during their work.

2. This Directive refers to the risk to the health and safety of workers due to adverse effects caused by exposure to artificial optical radiation to the eyes and to the skin.

3. Directive 89/391/EEC shall apply fully to the whole area referred to in paragraph 1, without prejudice to more stringent and/or more specific provisions contained in this Directive.

Article 2

Definitions

For the purposes of this Directive, the following definitions shall apply:

(a) optical radiation: any electromagnetic radiation in the wavelength range between 100 nm and 1 mm. The spectrum of optical radiation is divided into ultraviolet radiation, visible radiation and infrared radiation:

(i) ultraviolet radiation: optical radiation of wavelength range between 100 nm and 400 nm. The ultraviolet region is divided into UVA (315-400 nm), UVB (280-315 nm) and UVC (100-280 nm);

(ii) visible radiation: optical radiation of wavelength range between 380 nm and 780 nm;

(iii) infrared radiation: optical radiation of wavelength range between 780 nm and 1 mm. The infrared region is divided into IRA (780-1 400 nm), IRB (1 400 -3 000 nm) and IRC (3 000 nm-1 mm);

(b) laser (light amplification by stimulated emission of radiation): any device which can be made to produce or amplify electromagnetic radiation in the optical radiation wavelength range primarily by the process of controlled stimulated emission;

(c) laser radiation: optical radiation from a laser;

(d) non-coherent radiation: any optical radiation other than laser radiation;

(e) exposure limit values: limits on exposure to optical radiation which are based directly on established health effects and biological considerations. Compliance with these limits will ensure that workers exposed to artificial sources of optical radiation are protected against all known adverse health effects;

(f) irradiance (E) or power density: the radiant power incident per unit area upon a surface expressed in watts per square metre (W m-2);

(g) radiant exposure (H): the time integral of the irradiance, expressed in joules per square metre (J m-2);

(h) radiance (L): the radiant flux or power output per unit solid angle per unit area, expressed in watts per square metre per steradian (W m-2 sr-1);

(i) level: the combination of irradiance, radiant exposure and radiance to which a worker is exposed.

Article 3

Exposure limit values

1. The exposure limit values for non-coherent radiation, other than that emitted by natural sources of optical radiation, are as set out in Annex I.

2. The exposure limit values for laser radiation are as set out in Annex II.







SECTION II

OBLIGATIONS OF EMPLOYERS

Article 4

Determination of exposure and assessment of risks

1. In carrying out the obligations laid down in Articles 6(3) and 9(1) of Directive 89/391/EEC, the employer, in the case of workers exposed to artificial sources of optical radiation, shall assess and, if necessary, measure and/or calculate the levels of exposure to optical radiation to which workers are likely to be exposed so that the measures needed to restrict exposure to the applicable limits can be identified and put into effect. The methodology applied in assessment, measurement and/or calculations shall follow the standards of the International Electrotechnical Commission (IEC) in respect of laser radiation and the recommendations of the International Commission on Illumination (CIE) and the European Committee for Standardisation (CEN) in respect of non-coherent radiation. In exposure situations which are not covered by these standards and recommendations, and until appropriate EU standards or recommendations become available, assessment, measurement and/or calculations shall be carried out using available national or international science-based guidelines. In both exposure situations, the assessment may take account of data provided by the manufacturers of the equipment when it is covered by relevant Community Directives.

2. The assessment, measurement and/or calculations referred to in paragraph 1 shall be planned and carried out by competent services or persons at suitable intervals, taking particular account of the provisions of Articles 7 and 11 of Directive 89/391/EEC concerning the necessary competent services or persons and the consultation and participation of workers. The data obtained from the assessment, including those obtained from the measurement and/or calculation of the level of exposure referred to in paragraph 1 shall be preserved in a suitable form so as to permit their consultation at a later stage.

3. Pursuant to Article 6(3) of Directive 89/391/EEC, the employer shall give particular attention, when carrying out the risk assessment, to the following:

(a) the level, wavelength range and duration of exposure to artificial sources of optical radiation;

(b) the exposure limit values referred to in Article 3 of this Directive;

(c) any effects concerning the health and safety of workers belonging to particularly sensitive risk groups;

(d) any possible effects on workers’ health and safety resulting from workplace interactions between optical radiation and photosensitising chemical substances;

(e) any indirect effects such as temporary blinding, explosion or fire;

(f) the existence of replacement equipment designed to reduce the levels of exposure to artificial optical radiation;

(g) appropriate information obtained from health surveillance, including published information, as far as possible;

(h) multiple sources of exposure to artificial optical radiation;

(i) a classification applied to a laser as defined in accordance with the relevant IEC standard and, in relation to any artificial source likely to cause damage similar to that of a laser of class 3B or 4, any similar classification;

(j) information provided by the manufacturers of optical radiation sources and associated work equipment in accordance with the relevant Community Directives.

4. The employer shall be in possession of an assessment of the risk in accordance with Article 9(1)(a) of Directive 89/391/EEC and shall identify which measures must be taken in accordance with Articles 5 and 6 of this Directive. The risk assessment shall be recorded on a suitable medium, according to national law and practice; it may include a justification by the employer that the nature and extent of the risks related to optical radiation make a further, detailed risk assessment unnecessary. The risk assessment shall be updated on a regular basis, particularly if there have been significant changes which could render it out of date, or if the results of health surveillance show it to be necessary.

Article 5

Provisions aimed at avoiding or reducing risks

1. Taking account of technical progress and of the availability of measures to control the risk at source, the risks arising from exposure to artificial optical radiation shall be eliminated or reduced to a minimum.

The reduction of risks arising from exposure to artificial optical radiation shall be based on the general principles of prevention set out in Directive 89/391/EEC.

2. Where the risk assessment carried out in accordance with Article 4(1) for workers exposed to artificial sources of optical radiation indicates any possibility that the exposure limit values may be exceeded, the employer shall devise and implement an action plan comprising technical and/or organisational measures designed to prevent the exposure exceeding the limit values, taking into account in particular:

(a) other working methods that reduce the risk from optical radiation;

(b) the choice of equipment emitting less optical radiation, taking account of the work to be done;

(c) technical measures to reduce the emission of optical radiation including, where necessary, the use of interlocks, shielding or similar health protection mechanisms;

(d) appropriate maintenance programmes for work equipment, workplaces and workstation systems;

(e) the design and layout of workplaces and workstations;

(f) limitation of the duration and level of the exposure;

(g) the availability of appropriate personal protective equipment;

(h) the instructions of the manufacturer of the equipment where it is covered by relevant Community Directives.

3. On the basis of the risk assessment carried out in accordance with Article 4, workplaces where workers could be exposed to levels of optical radiation from artificial sources exceeding the exposure limit values shall be indicated by appropriate signs in accordance with Council Directive 92/58/EEC of 24 June 1992 on the minimum requirements for the provision of safety and/or health signs at work (9th individual Directive within the meaning of Article 16(1) of Directive 89/391/EEC) ( 1 ). The areas in question shall be identified, and access to them limited where this is technically possible and where there is a risk that the exposure limit values could be exceeded.

4. Workers shall not be exposed above the exposure limit values. In any event, if, despite the measures taken by the employer to comply with this Directive in respect of artificial sources of optical radiation, the exposure limit values are exceeded, the employer shall take immediate action to reduce exposure below the exposure limit values. The employer shall identify the reasons why the exposure limit values have been exceeded and shall adapt the protection and prevention measures accordingly in order to prevent them being exceeded again.

5. Pursuant to Article 15 of Directive 89/391/EEC, the employer shall adapt the measures referred to in this Article to the requirements of workers belonging to particularly sensitive risk groups.

Article 6

Worker information and training

Without prejudice to Articles 10 and 12 of Directive 89/391/EEC, the employer shall ensure that workers who are exposed to risks from artificial optical radiation at work and/or their representatives receive any necessary information and training relating to the outcome of the risk assessment provided for in Article 4 of this Directive, concerning in particular:

(a) measures taken to implement this Directive;

(b) the exposure limit values and the associated potential risks;

(c) the results of the assessment, measurement and/or calculations of the levels of exposure to artificial optical radiation carried out in accordance with Article 4 of this Directive together with an explanation of their significance and potential risks;

(d) how to detect adverse health effects of exposure and how to report them;

(e) the circumstances in which workers are entitled to health surveillance;

(f) safe working practices to minimise risks from exposure;

(g) proper use of appropriate personal protective equipment.

Article 7

Consultation and participation of workers

Consultation and participation of workers and/or of their representatives shall take place in accordance with Article 11 of Directive 89/391/EEC on the matters covered by this Directive.







SECTION III

MISCELLANEOUS PROVISIONS

Article 8

Health surveillance

1. With the objectives of the prevention and timely detection of any adverse health effects, as well as the prevention of any long-term health risks and any risk of chronic diseases, resulting from exposure to optical radiation, Member States shall adopt provisions to ensure appropriate health surveillance of workers pursuant to Article 14 of Directive 89/391/EEC.

2. Member States shall ensure that health surveillance is carried out by a doctor, an occupational health professional or a medical authority responsible for health surveillance in accordance with national law and practice.

3. Member States shall establish arrangements to ensure that, for each worker who undergoes health surveillance in accordance with paragraph 1, individual health records are made and kept up to date. Health records shall contain a summary of the results of the health surveillance carried out. They shall be kept in a suitable form so as to permit consultation at a later date, taking into account any confidentiality. Copies of the appropriate records shall be supplied to the competent authority on request, taking into account any confidentiality. The employer shall take appropriate measures to ensure that the doctor, the occupational health professional or the medical authority responsible for the health surveillance, as determined by Member States as appropriate, has access to the results of the risk assessment referred to in Article 4 where such results may be relevant to the health surveillance. Individual workers shall, at their request, have access to their own personal health records.

4. In any event, where exposure above the limit values is detected, a medical examination shall be made available to the worker(s) concerned in accordance with national law and practice. This medical examination shall also be carried out where, as a result of health surveillance, a worker is found to have an identifiable disease or adverse health effect which is considered by a doctor or occupational health professional to be the result of exposure to artificial optical radiation at work. In both cases, when limit values are exceeded or adverse health effects (including diseases) are identified:

(a) the worker shall be informed by the doctor or other suitably qualified person of the result which relates to him personally. He shall, in particular, receive information and advice regarding any health surveillance which he should undergo following the end of exposure;

(b) the employer shall be informed of any significant findings of the health surveillance, taking into account any medical confidentiality;

(c) the employer shall:

— review the risk assessment carried out pursuant to Article 4,

— review the measures provided for to eliminate or reduce risks pursuant to Article 5,

— take into account the advice of the occupational health professional or other suitably qualified person or the competent authority in implementing any measure required to eliminate or reduce risk in accordance with Article 5, and

— arrange continued health surveillance and provide for a review of the health status of any other worker who has been similarly exposed. In such cases, the competent doctor or occupational health professional or the competent authority may propose that the exposed persons undergo a medical examination.

Article 9

Penalties

Member States shall provide for adequate penalties to be applicable in the event of infringement of the national legislation adopted pursuant to this Directive. These penalties must be effective, proportionate and dissuasive.

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Article 10

Amendment of the Annexes

The Commission is empowered to adopt delegated acts in accordance with Article 10a to make strictly technical amendments to the Annexes, in order to take account of technical harmonisation and standardisation with regard to the design, building, manufacture or construction of work equipment or workplaces, technical progress, changes in harmonised European standards or international specifications and new scientific findings concerning occupational exposure to optical radiation. Those amendments shall not result in a modification of the exposure limit values set out in the Annexes.

Where, in duly justified and exceptional cases involving imminent, direct and serious risks to workers’ and other persons’ physical health and safety, imperative grounds of urgency require action in a very short timeframe, the procedure provided for in Article 10b shall apply to delegated acts adopted pursuant to this Article.

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Article 10a

Exercise of the delegation

1. The power to adopt delegated acts is conferred on the Commission subject to the conditions laid down in this Article.

2. The power to adopt delegated acts referred to in Article 10 shall be conferred on the Commission for a period of five years from 26 July 2019. The Commission shall draw up a report in respect of the delegation of power not later than nine months before the end of the five-year period. The delegation of power shall be tacitly extended for periods of an identical duration, unless the European Parliament or the Council opposes such extension not later than three months before the end of each period.

3. The delegation of power referred to in Article 10 may be revoked at any time by the European Parliament or by the Council. A decision to revoke shall put an end to the delegation of the power specified in that decision. It shall take effect the day following the publication of the decision in the Official Journal of the European Union or at a later date specified therein. It shall not affect the validity of any delegated acts already in force.

4. Before adopting a delegated act, the Commission shall consult experts designated by each Member State in accordance with the principles laid down in the Interinstitutional Agreement of 13 April 2016 on Better Law-Making ( 2 ).

5. As soon as it adopts a delegated act, the Commission shall notify it simultaneously to the European Parliament and to the Council.

6. A delegated act adopted pursuant to Article 10 shall enter into force only if no objection has been expressed either by the European Parliament or the Council within a period of two months of notification of that act to the European Parliament and the Council or if, before the expiry of that period, the European Parliament and the Council have both informed the Commission that they will not object. That period shall be extended by two months at the initiative of the European Parliament or of the Council.

Article 10b

Urgency procedure

1. Delegated acts adopted under this Article shall enter into force without delay and shall apply as long as no objection is expressed in accordance with paragraph 2. The notification of a delegated act to the European Parliament and the Council shall state the reasons for the use of the urgency procedure.

2. Either the European Parliament or the Council may object to a delegated act in accordance with the procedure referred to in Article 10a(6). In such a case, the Commission shall repeal the act immediately following the notification of the decision to object by the European Parliament or by the Council.

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SECTION IV

FINAL PROVISIONS

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Article 13

Practical guide

In order to facilitate implementation of this Directive the Commission shall draw up a practical guide to the provisions of Articles 4 and 5 and Annexes I and II.

Article 14

Transposition

1. Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive by 27 April 2010. They shall forthwith inform the Commission thereof.

When Member States adopt these measures, they shall contain a reference to this Directive or shall be accompanied by such reference on the occasion of their official publication. The methods of making such reference shall be laid down by Member States.

2. Member States shall communicate to the Commission the text of the provisions of national law which they adopt or have already adopted in the field covered by this Directive.

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Article 14a

1. Without prejudice to the general principles of protection and prevention in the area of health and safety of workers, France may, until 31 December 2017, derogate from the application of the provisions necessary to comply with this Directive in Mayotte as an outermost region within the meaning of Article 349 of the Treaty on the Functioning of the European Union (hereinafter ‘Mayotte’), provided that such application requires specific technical facilities that are not available in Mayotte.

The first subparagraph does not apply to the obligations set out in Article 5(1) of this Directive, or to the provisions of this Directive which reflect the general principles laid down in Directive 89/391/EEC.

2. All derogations from this Directive resulting from the application of measures existing on 1 January 2014 or from the adoption of new measures shall be preceded by a consultation with the social partners in accordance with national law and practice. Such derogations shall be applied under conditions which, taking into account the particular circumstances prevailing in Mayotte, guarantee that the resulting risks for workers are reduced to a minimum and that the workers concerned benefit from reinforced health surveillance.

3. The national derogating measures shall be reviewed every year, after consultation with the social partners, and shall be withdrawn as soon as the circumstances justifying them no longer subsist.

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Article 15

Entry into force

This Directive shall enter into force on the day of its publication in the Official Journal of the European Union.

Article 16

Addressees

This Directive is addressed to the Member States.









ANNEX I

Non-coherent optical radiation

The biophysically relevant exposure values to optical radiation can be determined with the formulae below. The formulae to be used depend on the range of radiation emitted by the source and the results should be compared with the corresponding exposure limit values indicated in Table 1.1. More than one exposure value and corresponding exposure limit can be relevant for a given source of optical radiation.

Numbering (a) to (o) refers to corresponding rows of Table 1.1.







(a) (Heff is only relevant in the range 180 to 400 nm) (b) (HUVA is only relevant in the range 315 to 400 nm) (c), (d) (LB is only relevant in the range 300 to 700 nm) (e), (f) (EB is only relevant in the range 300 to 700 nm) (g) to (l) (See Table 1.1 for appropriate values of λ1 and λ2) (m), (n) (EIR is only relevant in the range 780 to 3 000 nm) (o) (Hskin is only relevant in the range 380 to 3 000 nm)

For the purposes of this Directive, the formulae above can be replaced by the following expressions and the use of discrete values as set out in the following tables:







(a) and (b) and (c), (d) (e), (f) (g) to (l) (See Table 1.1 for appropriate values of λ1 and λ2) (m), (n) (o) and

Notes:

Eλ (λ,t), Eλ spectral irradiance or spectral power density: the radiant power incident per unit area upon a surface, expressed in watts per square metre per nanometre [W m-2 nm-1]; values of Eλ (λ, t) and Eλ come from measurements or may be provided by the manufacturer of the equipment;

Eeff effective irradiance (UV range): calculated irradiance within the UV wavelength range 180 to 400 nm spectrally weighted by S (λ), expressed in watts per square metre [W m-2];

H radiant exposure: the time integral of the irradiance, expressed in joules per square metre [J m-2];

Heff effective radiant exposure: radiant exposure spectrally weighted by S (λ), expressed in joules per square metre [J m-2];

EUVA total irradiance (UVA): calculated irradiance within the UVA wavelength range 315 to 400 nm, expressed in watts per square metre [W m-2];

HUVA radiant exposure: the time and wavelength integral or sum of the irradiance within the UVA wavelength range 315 to 400 nm, expressed in joules per square metre [J m-2];

S (λ) spectral weighting taking into account the wavelength dependence of the health effects of UV radiation on eye and skin, (Table 1.2) [dimensionless];

t, Δt time, duration of the exposure, expressed in seconds [s];

λ wavelength, expressed in nanometres [nm];

Δ λ bandwidth, expressed in nanometres [nm], of the calculation or measurement intervals;

Lλ (λ), Lλ spectral radiance of the source expressed in watts per square metre per steradian per nanometre [W m-2 sr -1 nm-1];

R (λ) spectral weighting taking into account the wavelength dependence of the thermal injury caused to the eye by visible and IRA radiation (Table 1.3) [dimensionless];

LR effective radiance(thermal injury): calculated radiance spectrally weighted by R (λ) expressed in watts per square metre per steradian [W m-2 sr -1];

B (λ) spectral weighting taking into account the wavelength dependence of the photochemical injury caused to the eye by blue light radiation (Table 1.3) [dimensionless];

LB effective radiance(blue light): calculated radiance spectrally weighted by B (λ), expressed in watts per square metre per steradian [W m-2 sr -1];

EB effective irradiance (blue light): calculated irradiance spectrally weighted by B (λ) expressed in watts per square metre [W m-2];

EIR total irradiance (thermal injury): calculated irradiance within the infrared wavelength range 780 nm to 3 000 nm expressed in watts per square metre [W m-2];

Eskin total irradiance (visible, IRA and IRB): calculated irradiance within the visible and infrared wavelength range 380 nm to 3 000 nm, expressed in watts per square metre [W m-2];

Hskin radiant exposure: the time and wavelength integral or sum of the irradiance within the visible and infrared wavelength range 380 to 3 000 nm, expressed in joules per square metre (J m-2);

α angular subtense: the angle subtended by an apparent source, as viewed at a point in space, expressed in milliradians (mrad). Apparent source is the real or virtual object that forms the smallest possible retinal image.







Table 1.1 Exposure limit values for non-coherent optical radiation Index Wavelength nm Exposure limit value Units Comment Part of the body Hazard a. 180-400 (UVA, UVB and UVC) Heff = 30 Daily value 8 hours [J m-2]



eye cornea conjunctiva lens skin photokeratitis conjunctivitis cataractogenesis erythema elastosis skin cancer b. 315-400 (UVA) HUVA = 104 Daily value 8 hours [J m-2] eye lens cataractogenesis c. 300-700 (Blue light) see note 1 for t ≤ 10 000 s LB :[W m-2 sr-1] t: [seconds] for α ≥ 11 mrad eye retina photoretinitis d. 300-700 (Blue light) see note 1 LB = 100 for t > 10 000 s [W m-2 sr-1] e. 300-700 (Blue light) see note 1 for t ≤ 10 000 s EB: [W m-2] t: [seconds] for α < 11 mrad see note 2 f. 300-700 (Blue light) see note 1 EB = 0,01 t >10 000 s [W m-2] g. 380-1 400 (Visible and IRA) for t >10 s [W m-2 sr-1] Cα = 1,7 for α ≤ 1,7 mrad Cα = α for 1,7 ≤ α ≤ 100 mrad Cα = 100 for α > 100 mrad λ1= 380; λ2= 1 400 eye retina retinal burn h. 380-1 400 (Visible and IRA) for 10 μs ≤ t ≤ 10 s LR:[W m-2 sr-1] t: [seconds] i. 380-1 400 (Visible and IRA) for t <10 μs [W m-2 sr-1] j. 780-1 400 (IRA) for t > 10 s [W m-2 sr-1] Cα = 11 for α ≤ 11 mrad Cα = α for 11≤ α ≤ 100 mrad Cα = 100 for α > 100 mrad (measurement field-of-view: 11 mrad) λ1= 780; λ2= 1 400 eye retina retinal burn k. 780-1 400 (IRA) for 10 μs ≤ t ≤ 10 s LR: [W m-2 sr-1] t: [seconds] l. 780-1 400 (IRA) for t < 10 μs [W m-2 sr-1] m. 780-3 000 (IRA and IRB) EIR = 18 000 t-0,75 for t ≤ 1 000 s E: [W m-2] t: [seconds]



eye cornea lens corneal burn cataractogenesis n. 780-3 000 (IRA and IRB) EIR = 100 for t > 1 000 s [W m-2] o. 380-3 000 (Visible, IRA and IRB) Hskin = 20 000 t0,25 for t < 10 s H: [J m-2] t: [seconds] skin burn Note 1: The range of 300 to 700 nm covers parts of UVB, all UVA and most of visible radiation; however, the associated hazard is commonly referred to as ‘blue light’ hazard. Blue light strictly speaking covers only the range of approximately 400 to 490 nm. Note 2: For steady fixation of very small sources with an angular subtense < 11 mrad, LB can be converted to EB. This normally applies only for ophthalmic instruments or a stabilized eye during anaesthesia. The maximum ‘stare time’ is found by: tmax = 100/EB with EB expressed in W m-2. Due to eye movements during normal visual tasks this does not exceed 100 s.







Table 1.2 S (λ) [dimensionless], 180 nm to 400 nm λ in nm S (λ) λ in nm S (λ) λ in nm S (λ) λ in nm S (λ) λ in nm S (λ) 180 0,0120 228 0,1737 276 0,9434 324 0,000520 372 0,000086 181 0,0126 229 0,1819 277 0,9272 325 0,000500 373 0,000083 182 0,0132 230 0,1900 278 0,9112 326 0,000479 374 0,000080 183 0,0138 231 0,1995 279 0,8954 327 0,000459 375 0,000077 184 0,0144 232 0,2089 280 0,8800 328 0,000440 376 0,000074 185 0,0151 233 0,2188 281 0,8568 329 0,000425 377 0,000072 186 0,0158 234 0,2292 282 0,8342 330 0,000410 378 0,000069 187 0,0166 235 0,2400 283 0,8122 331 0,000396 379 0,000066 188 0,0173 236 0,2510 284 0,7908 332 0,000383 380 0,000064 189 0,0181 237 0,2624 285 0,7700 333 0,000370 381 0,000062 190 0,0190 238 0,2744 286 0,7420 334 0,000355 382 0,000059 191 0,0199 239 0,2869 287 0,7151 335 0,000340 383 0,000057 192 0,0208 240 0,3000 288 0,6891 336 0,000327 384 0,000055 193 0,0218 241 0,3111 289 0,6641 337 0,000315 385 0,000053 194 0,0228 242 0,3227 290 0,6400 338 0,000303 386 0,000051 195 0,0239 243 0,3347 291 0,6186 339 0,000291 387 0,000049 196 0,0250 244 0,3471 292 0,5980 340 0,000280 388 0,000047 197 0,0262 245 0,3600 293 0,5780 341 0,000271 389 0,000046 198 0,0274 246 0,3730 294 0,5587 342 0,000263 390 0,000044 199 0,0287 247 0,3865 295 0,5400 343 0,000255 391 0,000042 200 0,0300 248 0,4005 296 0,4984 344 0,000248 392 0,000041 201 0,0334 249 0,4150 297 0,4600 345 0,000240 393 0,000039 202 0,0371 250 0,4300 298 0,3989 346 0,000231 394 0,000037 203 0,0412 251 0,4465 299 0,3459 347 0,000223 395 0,000036 204 0,0459 252 0,4637 300 0,3000 348 0,000215 396 0,000035 205 0,0510 253 0,4815 301 0,2210 349 0,000207 397 0,000033 206 0,0551 254 0,5000 302 0,1629 350 0,000200 398 0,000032 207 0,0595 255 0,5200 303 0,1200 351 0,000191 399 0,000031 208 0,0643 256 0,5437 304 0,0849 352 0,000183 400 0,000030 209 0,0694 257 0,5685 305 0,0600 353 0,000175 210 0,0750 258 0,5945 306 0,0454 354 0,000167 211 0,0786 259 0,6216 307 0,0344 355 0,000160 212 0,0824 260 0,6500 308 0,0260 356 0,000153 213 0,0864 261 0,6792 309 0,0197 357 0,000147 214 0,0906 262 0,7098 310 0,0150 358 0,000141 215 0,0950 263 0,7417 311 0,0111 359 0,000136 216 0,0995 264 0,7751 312 0,0081 360 0,000130 217 0,1043 265 0,8100 313 0,0060 361 0,000126 218 0,1093 266 0,8449 314 0,0042 362 0,000122 219 0,1145 267 0,8812 315 0,0030 363 0,000118 220 0,1200 268 0,9192 316 0,0024 364 0,000114 221 0,1257 269 0,9587 317 0,0020 365 0,000110 222 0,1316 270 1,0000 318 0,0016 366 0,000106 223 0,1378 271 0,9919 319 0,0012 367 0,000103 224 0,1444 272 0,9838 320 0,0010 368 0,000099 225 0,1500 273 0,9758 321 0,000819 369 0,000096 226 0,1583 274 0,9679 322 0,000670 370 0,000093 227 0,1658 275 0,9600 323 0,000540 371 0,000090







Table 1.3 B (λ), R (λ) [dimensionless], 380 nm to 1 400 nm λ in nm B (λ) R (λ) 300 ≤ λ < 380 0,01 — 380 0,01 0,1 385 0,013 0,13 390 0,025 0,25 395 0,05 0,5 400 0,1 1 405 0,2 2 410 0,4 4 415 0,8 8 420 0,9 9 425 0,95 9,5 430 0,98 9,8 435 1 10 440 1 10 445 0,97 9,7 450 0,94 9,4 455 0,9 9 460 0,8 8 465 0,7 7 470 0,62 6,2 475 0,55 5,5 480 0,45 4,5 485 0,32 3,2 490 0,22 2,2 495 0,16 1,6 500 0,1 1 500 < λ ≤ 600 100,02 ·(450 - λ) 1 600 < λ ≤ 700 0,001 1 700 < λ ≤ 1 050 — 100,002 · (700 - λ) 1 050 < λ ≤ 1 150 — 0,2 1 150 < λ ≤ 1 200 — 0,2 · 100,02 ·(1 150 - λ) 1 200 < λ ≤ 1 400 — 0,02









ANNEX II

Laser optical radiation

The biophysically relevant exposure values to optical radiation can be determined with the formulae below. The formulae to be used depend on the wavelength and duration of radiation emitted by the source and the results should be compared with the corresponding exposure limit values indicated in the Tables 2.2 to 2.4. More than one exposure value and corresponding exposure limit can be relevant for a given source of laser optical radiation.

Coefficients used as calculation tools within the Tables 2.2 to 2.4 are listed in Table 2.5 and corrections for repetitive exposure are listed in Table 2.6.

Notes:

dP power expressed in watt [W];

dA surface expressed in square metres [m2];

E (t), E irradiance or power density: the radiant power incident per unit area upon a surface, generally expressed in watts per square metre [W m-2]. Values of E(t), E come from measurements or may be provided by the manufacturer of the equipment;

H radiant exposure: the time integral of the irradiance, expressed in joules per square metre [J m-2];

t time, duration of the exposure, expressed in seconds [s];

λ wavelength, expressed in nanometres [nm];

γ limiting cone angle of measurement field-of-view expressed in milliradians [mrad];

γm measurement field of view expressed in milliradians [mrad];

α angular subtense of a source expressed in milliradians [mrad];

limiting aperture: the circular area over which irradiance and radiant exposure are averaged;

G integrated radiance: the integral of the radiance over a given exposure time expressed as radiant energy per unit area of a radiating surface per unit solid angle of emission, in joules per square metre per steradian [J m-2 sr -1].

Table 2.1

Radiation hazards







Wavelength [nm] λ Radiation range Affected organ Hazard Exposure limit value table 180 to 400 UV eye photochemical damage and thermal damage 2.2, 2.3 180 to 400 UV skin erythema 2.4 400 to 700 visible eye retinal damage 2.2 400 to 600 visible eye photochemical damage 2.3 400 to 700 visible skin thermal damage 2.4 700 to 1 400 IRA eye thermal damage 2.2, 2.3 700 to 1 400 IRA skin thermal damage 2.4 1 400 to 2 600 IRB eye thermal damage 2.2 2 600 to 106 IRC eye thermal damage 2.2 1 400 to 106 IRB, IRC eye thermal damage 2.3 1 400 to 106 IRB, IRC skin thermal damage 2.4

Table 2.2

Exposure limit values for laser exposure to the eye — Short exposure duration < 10 s

Table 2.3

Exposure limit values for laser exposure to the eye — Long exposure duration ≥ 10 s

Table 2.4

Exposure limit values for laser exposure of skin

Table 2.5

Applied correction factors and other calculation parameters







Parameter as listed in ICNIRP Valid spectral range (nm) Value CA λ < 700 CA = 1,0 700 — 1 050 CA = 10 0,002 (λ - 700) 1 050 — 1 400 CA = 5,0 CB 400 — 450 CB = 1,0 450 — 700 CB = 10 0,02 (λ - 450) CC 700 — 1 150 CC = 1,0 1 150 — 1 200 CC = 10 0,018 (λ - 1 150 ) 1 200 — 1 400 CC = 8,0 T1 λ < 450 T1 = 10 s 450 — 500 T1 = 10 · [10 0,02 (λ - 450)] s λ > 500 T1 = 100 s







Parameter as listed in ICNIRP Valid for biological effect Value αmin all thermal effects αmin = 1,5 mrad







Parameter as listed in ICNIRP Valid angular range (mrad) Value CE α < αmin CE = 1,0 αmin < α < 100 CE = α/αmin α > 100 CE = α2/(αmin · αmax) mrad with αmax = 100 mrad T2 α < 1,5 T2 = 10 s 1,5 < α < 100 T2 = 10 · [10 (α - 1,5 ) / 98,5 ] s α > 100 T2 = 100 s







Parameter as listed in ICNIRP Valid exposure time range (s) Value γ t ≤ 100 γ = 11 [mrad] 100 < t < 104 γ = 1,1 t 0,5 [mrad] t > 104 γ = 110 [mrad]

Table 2.6

Correction for repetitive exposure

Each of the following three general rules should be applied to all repetitive exposures as occur from repetitively pulsed or scanning laser systems:

1. The exposure from any single pulse in a train of pulses shall not exceed the exposure limit value for a single pulse of that pulse duration.

2. The exposure from any group of pulses (or sub-group of pulses in a train) delivered in time t shall not exceed the exposure limit value for time t.

3. The exposure from any single pulse within a group of pulses shall not exceed the single-pulse exposure limit value multiplied by a cumulative-thermal correction factor Cp=N-0,25 , where N is the number of pulses. This rule applies only to exposure limits to protect against thermal injury, where all pulses delivered in less than Tmin are treated as a single pulse.







Parameter Valid spectral range (nm) Value Tmin 315 < λ ≤ 400 Tmin = 10 -9 s (= 1 ns) 400 < λ ≤ 1 050 Tmin = 18· 10 -6 s (= 18 μs) 1 050 < λ ≤ 1 400 Tmin = 50· 10 -6 s (= 50 μs) 1 400 < λ ≤ 1 500 Tmin = 10 -3 s (= 1 ms) 1 500 < λ ≤ 1 800 Tmin = 10 s 1 800 < λ ≤ 2 600 Tmin = 10 -3 s (= 1 ms) 2 600 < λ ≤ 10 6 Tmin = 10 -7 s (= 100 ns)