GB/T 2680-2021 Active National standards

GB/T 2680-2021 Glass in building—Determination of light transmittance,solar direct transmittance,total solar energy transmittance,ultraviolet transmittance and related glazing factors

Publish Date: 2021-03-09 Implement Date: 2021-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 93

Download

Basic Information

Standard Code: GB/T 2680-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Ceramics, glass

ICS Name: \nGlass

Publish Date: 2021-03-09

Implement Date: 2021-10-01

Pages: 29 pages

Scope

This standard specifies the visible light transmittance, visible light reflectance, solar radiation flux, direct solar transmittance, direct solar reflectance, direct solar absorption, total solar transmittance, secondary heat transfer coefficient to the indoor side, shading coefficient, light-to-heat ratio, ultraviolet transmittance, emissivity, total solar infrared heat transmittance, and the measurement methods for related window glass parameters.
This standard applies to transparent materials such as single-pane glass and multi-pane windows.