International Standard
ISO 9050:2003
Glass in building — Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors
Reference number
ISO 9050:2003
Edition 2
2003-08
International Standard
Read sample
ISO 9050:2003
35062
Published (Edition 2, 2003)
This standard was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 9050:2003

ISO 9050:2003
35062
Language
Format
CHF 151
Convert Swiss francs (CHF) to your currency

Abstract

ISO 9050:2003 specifies methods of determining light and energy transmittance of solar radiation for glazing in buildings. These characteristic data can serve as a basis for light, heating and ventilation calculations of rooms and can permit comparison between different types of glazing.

ISO 9050:2003 is applicable both to conventional glazing units and to absorbing or reflecting solar-control glazing, used as glazed apertures. The appropriate formulae for single, double and triple glazing are given. Furthermore, the general calculation procedures for units consisting of more than components are established.

ISO 9050:2003 is applicable to all transparent materials. One exception is the treatment of the secondary heat transfer factor and the total solar energy factor for those materials that show significant transmittance in the wavelength region of ambient temperature radiation (5 microns to 50 microns), such as certain plastic sheets.

General information

  •  : Published
     : 2003-08
    : International Standard confirmed [90.93]
  •  : 2
     : 27
  • ISO/TC 160
    81.040.20 
  • RSS updates

Life cycle

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)