
Determination of light transmittance, solar direct transmittance, total solar energy transmittance and ultraviolet transmittance for glass in building and related glazing factors
NORM herausgegeben am 30.12.1993
Designation standards: GB/T 2680-1994
Note: UNGÜLTIG
Publication date standards: 30.12.1993
Country: Chinese technical standard
Kategorie: Technische Normen GB