Language:
    • Available Formats
    • Options
    • Availability
    • Priced From ( in USD )
    • Secure PDF

      Secure PDF Files

      Secure PDF files include digital rights management (DRM) software. DRM is included at the request of the publisher, as it helps them protect their copyright by restricting file sharing. In order to read a Secure PDF, you will need to install the FileOpen Plug-In on your computer. The FileOpen Plug-In works with Adobe Reader and other viewers. Visit FileOpen to see the full list.

        What you can do with a Secure PDF:
      • Print
      • Search
      • Highlight
      • Bookmark
      Please note that some publishers - including BOMA, IADC and NRC - do not allow printing of their documents.

    • 👥
    • Immediate download
    • $44.52
    • Add to Cart
    • Printed Edition
    • Ships in 1-2 business days
    • $44.52
    • Add to Cart
    • Printed Edition + PDF
    • Immediate download
    • $60.42
    • Add to Cart

Customers Who Bought This Also Bought

 

About This Item

 

Full Description

Joint ISO/CIE Standard

ISO 15469:2004 (E) / CIE S 011/E:2003

CIE has published the standard "CIE S003 Spatial distribution of daylight - CIE standard overcast sky and clear sky" in 1996. Since then further types of skies were examined and an international consensus was reached on their luminance distribution and standardization.

The luminance distribution of the sky depends on weather and climate, and it changes during the course of a day with the position of the sun. This standard lists a set of luminance distributions, which model the sky under a wide range of conditions, from the heavily overcast sky to cloudless weather. It is intended for two purposes:

i. to be a universal basis for the classification of measured sky luminance distributions

ii. to give a method for calculating sky luminance in daylighting design procedures.

This Standard defines relative luminance distributions: the luminance of the sky at any point is given as a function of the zenith luminance. For daylighting calculation purposes it may be used with values of zenith luminance or of horizontal illuminance to obtain absolute luminance distributions.

This Standard incorporates both the CIE Standard Clear Sky and the CIE Standard Overcast Sky, which are treated as particular cases of the General Sky. The Overcast Sky is retained as a separate formula because there are many calculation procedures that embody the mathematical formulation of this particular distribution.

This present Standard replaces CIE S003 - 1996 "Spatial distribution of daylight - CIE standard overcast sky and clear sky" and ISO 15469:1997.

This standard has been approved by CIE and by ISO.