GB/T 22476-2008 Active National standards

GB/T 22476-2008 Calculation and determination of steady-state U values(thermal transmittance) of multiple glazing

GB/T 22476-2008 Calculation and determination of steady-state U values(thermal transmittance) of multiple glazing

Publish Date: 2008-11-04 Implement Date: 2009-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 22476-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Architectural glass

ICS Name: \nGlass

Publish Date: 2008-11-04

Implement Date: 2009-06-01

Pages: 19 pages

Scope

This standard specifies three methods for calculating and measuring the U-value (heat transfer coefficient) of insulating glass in a stable state.
This standard applies to flat double or multi-layer insulating glass made of flat glass (including embossed and cast glass), coated glass, or other materials. It does not apply to insulating glass whose outer pane is made of materials that transmit far-infrared radiation. The test methods specified in this standard only measure the U-value (heat transfer coefficient) of the central area of the insulating glass and do not consider edge effects and the influence of solar radiation. The U-value of curved insulating glass can be calculated and measured using flat insulating glass of the same structure.

Development Information

Word Count: 33 Thousand words Pages: 19 pages

Referenced Standards

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 10294-1988 Thermal insulation—Determination of steady-state thermal resistance and related properties—Guarded hot plate apparatus GB/T 10294-2008 Thermal insulation—Determination of steady-state thermal resistance and related properties—Guarded hot plate apparatus GB/T 10295-1988 Thermal insulation—Determination of steady-state thermal resistance and related properties—Heat flow meter apparatus GB/T 10295-2008 Thermal insulation—Determination of steady-state thermal resistance and related properties—Heat flow meter apparatus

Adopt standards

ISO 10291:1994 ISO 10292:1994 ISO 10293:1997

Related Standards

GB/T 4121-1983 Replaced

GB/T 4121-1983 The test method for stability to thermal darkening of silica glass

Publish Date: 1983-12-30

GB/T 4870-1985 Abolished

GB/T 4870-1985 Sheet glass dimension series

Publish Date: 1985-01-19

GB/T 5432-1985 Replaced

GB/T 5432-1985 The density of daily use glass—Test method

Publish Date: 1985-10-04

GB/T 5433-1985 Replaced

GB/T 5433-1985 The transmittance of daily use glass—Test method

Publish Date: 1985-10-04

GB/T 5949-1986 Replaced

GB/T 5949-1986 Test method of alveolus and gas line in transparent silica glass

Publish Date: 1986-03-15

GB/T 6581-1986 Replaced

GB/T 6581-1986 Glass—Resistance to attack by hydrochloric acid at 100℃—Flame emission or atomic absorption spectrometric method

Publish Date: 1986-07-22