EN 14255-3:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
   3.1 Symbols, terms and units
   3.2 Definitions
4 Survey of procedures
5 Risk assessment using the solar UV-Index I[UV]
   5.1 General
   5.2 Determination of solar UV-Index I[UV]
   5.3 Risk assessment
   5.4 Decision on protective measures
   5.5 Advantages and limitations
6 Determination and assessment of the skin exposure
   factor
   6.1 General
   6.2 Skin exposure factor
        6.2.1 General
        6.2.2 Calculation of the skin exposure factor
        6.2.3 Assessment
   6.3 Advantages and limitations
7 Calculation of solar radiation exposures by
   radiative transfer models
   7.1 General
   7.2 Models for the calculation of UV-exposure
   7.3 Assessment of the result
   7.4 Necessity of protective measures
   7.5 Advantages and limitations of the procedures
8 Measurement of erythemal effective radiant exposure H[er]
   8.1 General
   8.2 Quantities to be measured
   8.3 Description of the methods
   8.4 Advantages and limitations
9 Measurement of non-melanoma skin cancer radiant
   exposure H[nmsc]
   9.1 General
   9.2 Procedure
   9.3 Protective measures
   9.4 Advantages and limitations
10 Measurement and assessment according to EN 14255-1
   10.1 General
   10.2 Procedure
   10.3 Protective measures
   10.4 Advantages and limitations
11 Sun protection measures
Annex A (normative) - Relation between skin type
                      and minimal erythema dose
Annex B (informative) - Examples of protective measures
Annex C (informative) - UV skin and eye risks
Annex D (informative) - Methods for the measurement of
                        solar erythemal effective radiant
                        exposure H[er]
   D.1 General
   D.2 Methods A to F for the measurement of the erythemal
       effective radiant exposure H[er]
       D.2.1 General
       D.2.2 Method A
       D.2.3 Method B
       D.2.4 Method C
       D.2.5 Method D
       D.2.6 Method E
       D.2.7 Method F
Bibliography

This European Standard specifies procedures for the measurement or estimation and the assessment of personal exposures to ultraviolet radiation emitted by the sun.NOTE 1According to CIE 17.4 UV-radiation is defined as an electromagnetic radiation with wavelength between 100 nm and 400 nm. Due to atmospheric absorption only solar UV-radiation in the spectral region between 280 nm and 400 nm reaches the earth's surface in significant amounts.This European Standard applies to solar UV-exposures when staying outdoors.This European Standard is applicable to workers and to the general population.This European Standard does not apply to UV-exposures caused by artificial sources, e.g. UV-lamps, welding arcs.NOTE 2Part 1 of this European Standard deals with UV-exposures caused by artificial sources.NOTE 3For radiation emissions of products other standards apply, such as CIE S 009 for lamps and lamp systems, EN 60335-2-27 [6] for sunbeds, EN 60335-2-59 [7] for insect killers and EN 12198 [8] for radiation emissions of machinery.This European Standard does not apply to radiation exposures which concern the retina of the eyes.NOTE 4Ultraviolet and visible radiation exposures of the eyes may result in photochemical damage to the retina (this is often called the blue light hazard). The associated action spectrum contains mainly visible radiation and only a very small contribution in the ultraviolet region. The determination and assessment of radiation which may result in a blue light hazard may be done in accordance with part 2 of EN 14255 [20].