This standard specifies the daylighting coefficient of public places determined by ruler measurement. This standard applies to the determination of daylighting coefficient in public places, and also applies to the determination of daylighting coefficient in residential buildings.
GB/T 18204.20-2000 history
2013GB/T 18204.1-2013 Examination methods for public places.Part 1:Physical parameters
2000GB/T 18204.20-2000 Methods for determination of daylighting efficient in public places
GB/T 18204.20-2000 Methods for determination of daylighting efficient in public places was changed to GB/T 18204.1-2013 Examination methods for public places.Part 1:Physical parameters.