NBN EN 563 : 95 AMD 1 99

Co-operating organizations
National foreword
Foreword
0 Introduction
1 Scope
2 Normative references
3 Definitions
4 Burn thresholds
5 Application
6 Interpretation and conclusions
Annex A (informative) Scientific background
Annex B (normative) Examples of contact periods
Annex C (informative) Protective measures
Annex D (informative) Examples of the application of the
                      standard
Annex E (informative) Thermal properties of selected
                      materials
Annex F (informative) Bibliography
Annex G (informative) A-Deviation
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives
Figure 1 - Illustration of relationship between the burn
           threshold and the contact period when a hot
           surface is touched by the skin
Figure 2 - Burn threshold spread when the skin is in contact
           with a hot smooth surface made of bare (uncoated)
           metal
Figure 3a - Rise of the burn threshold spread from Figure 2
            for metals which are coated by lac of a thickness
            of 50 mu m, 100 mu m and 150 mu m
Figure 3b - Rise of the burn threshold spread from Figure 2
            for metals which are coated by Rilsan 2)
            (thickness 400 mu m), powder (60 mu m and 90 mu m)
            and porcelain enamel (160 mu m)
Figure 4 - Burn threshold spread when the skin is in contact
           with a hot smooth surface made of ceramics, glass
           and some stone materials
Figure 5 - Burn threshold spread when the skin is in contact
           with a hot smooth surface made of plastics
Figure 6 - Burn threshold spread when the skin is in contact
           with a hot smooth surface made of wood
Table 1
Table 2 - Burn threshold spreads for a contact period of 0.5 s
Table 3 - Rise of burn threshold spread for coated metals for
          a contact period of 0.5 s
Table B.1
Table E.1 - Thermal properties of selected materials (taken
            from [3])

Identifies ergonomics data and their use in identifying temperature limit values for hot surfaces and in assessing risks of burning. Applies within the field of application of EN 292 to hot surfaces of machinery that are or can be touched during usage. Supplies data regarding circumstances under which contact between hot surface and bare skin could lead to burns. Data may be used in development of standards for particular machinery where as a result of a risk assessment temperature limits are needed. Data for protection against pain are not covered.