GB/T 2680-1994Determination of light transmittance, solar direct transmittance, total solar energy transmittance and ultraviolet transmittance for glass in building and related glazing factors (English PDF)
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
GB/T 2680 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 2680-2021 | Glass in building - Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors | Valid |
| GB/T 2680-1994 | Determination of light transmittance, solar direct transmittance, total solar energy transmittance and ultraviolet transmittance for glass in building and related glazing factors | Obsolete |
GB/T 2680-1994 is obsolete. It has been replaced by GB/T 2680-2021. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
State Bureau of Technical Supervision
Level / Type
National · Recommended
Issue date
January 2, 1994
Implementation date
October 1, 1994
Scope
GB/T 2680-1994 is the English-translated version of 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.
GB/T 2680-1994 is the Chinese national standard "Determination of light transmittance, solar direct transmittance, total solar energy transmittance and ultraviolet transmittance for glass in building and related glazing factors".
It was issued on January 2, 1994 by the State Bureau of Technical Supervision, and took effect on October 1, 1994. It is obsolete: it has been replaced by GB/T 2680-2021.
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Document preview — GB/T 2680-1994
National Standard of the People's Republic of China
Issued by: State Bureau of Technical Supervision
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: State Bureau of Technical Supervision.
Date of issue: 1994-01-02.
Date of implementation: 1994-10-01.
Status: obsolete, replaced by GB/T 2680-2021.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 47267-2026Railway applications - Windows for rolling stock - Bodyside windows
- GB/T 47553-2026Calculation method of energy balance value for glass in building
- GB/T 29061-2025Performance films for building glass
- GB/T 35604-2025Green product assessment — Building glass
- GB/T 45543-2025Substrate glass for organic light emitting diode (OLED) display devices
- GB/T 45822-2025Transparent glass-ceramics for mobile display cover
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GB/T 2680-1994
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