GB/T 2680-2021

Active

Glass in building—Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors

建筑玻璃可见光透射比、太阳光直接透射比、太阳能总透射比、紫外线透射比及有关窗玻璃参数的测定

Standard Type

GBT

ICS

81.040

CCS

Q30

Status

现行

Issue Date

2021-03-09

Implementation

2021-10-01

Responsible Dept

中国建筑材料联合会

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/Z 2640-2021 Injection vials made of moulded glass GB/Z 12414-2021 Pharmaceutical glass tube GB/T 4870-1985 Sheet glass dimension series GB/T 903-1987 Colourless optical glass GB/T 7962.7-1987 Colourless optical glass test methods--Examination method for extent of stria GB/T 7962.13-1987 Colourless optical glass test methods--Coefficient of thermal conductivity GB/T 9987-1988 Terms of glass container manufacture GB/T 12416.2-1990 Glass--Hydrolytic resistance ofglass grains at 121℃--Test method and classification