EN 14501:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Notations used
  4.1 General
  4.2 Visual or solar properties
  4.3 Geometry of the radiation
  4.4 Optical factors
5 Thermal comfort
  5.1 General
  5.2 Control of solar gains - Total solar energy
      transmittance g[tot]
  5.3 Secondary heat gains - Secondary heat transfer factor
      q[i, tot]
  5.4 Protection from direct transmission - Normal/normal
      solar transmittance tau[e, n-n]
6 Visual comfort
  6.1 General
  6.2 Opacity control
  6.3 Glare control
  6.4 Night privacy
  6.5 Visual contact with the outside
  6.6 Daylight utilisation
  6.7 Rendering of colours
Annex A (normative) Reference glazings
      A.1 General
      A.2 Glazing A
      A.3 Glazing B
      A.4 Glazing C
      A.5 Glazing D
Annex B (informative) The meaning of the secondary internal
        heat transfer factor q[i, tot]
Annex C (informative) Example of performance presentation
      C.1 Thermal comfort
      C.2 Visual comfort
Bibliography

This European Standard applies to the whole range of shutters, awnings and blinds defined in EN 12216, described as solar protection devices in this European Standard.It states the properties that shall be taken into account when comparing products.It also specifies the corresponding parameters and classifications to quantify the following properties:-for the thermal comfort:-the solar factor (total solar energy transmittance);-the shading factor;-the secondary heat transfer factor;-the direct solar transmittance;-for the visual comfort:-the opacity control;-the night privacy;-the visual contact with the outside;-the glare control;-the daylight utilisation;-the rendering of colours.NOTEFor other purposes, more detailed methods using different parameters can be used.Some of the characteristics (e.g. gtot) are not applicable when products are not parallel to the glazing (e.g. folding-arm awnings).This European Standard is not applicable to the products using fluorescent materials.