BS EN 410:2011

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Determination of characteristics
6 Expression of results
7 Test report
Annex A (normative) - Procedures for calculation
        of the spectral characteristics of glass
        plates with a different thickness and/or
        colour
Annex B (normative) - Procedure for calculation
        of the spectral characteristics of
        laminated glass
Annex C (informative) - Procedure for calculation
        of the spectral characteristics of screen
        printed glass
Annex D (informative) - Example of calculation of
        colour rendering index
Bibliography

Defines methods of determining the luminous and solar characteristics of glazing in buildings.

This European Standard specifies methods of determining the luminous and solar characteristics of glazing in buildings. These characteristic can serve as a basis for lighting, heating and cooling calculations of rooms and permit comparison between different types of glazing.

This European Standard applies both to conventional glazing and to absorbing or reflecting solar-control glazing, used as vertical or horizontal glazed apertures. The appropriate formulae for single, double and triple glazing are given.

This European Standard is accordingly applicable to all transparent materials except those which show significant transmission in the wavelength region 5 μm to 50 μm of ambient temperature radiation, such as certain plastic materials.

Materials with light-scattering properties for incident radiation are dealt with as conventional transparent materials subject to certain conditions (see 5.2).

Angular light and solar properties of glass in building are excluded from this standard. However, research work in this area is summarised in Bibliography [1], [2] and [3].