GB/T 22476-2008 Active
GB/T 22476-2008 Calculation and determination of steady-state U values(thermal transmittance) of multiple glazing
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 22476-2008 |
| CCS | Architectural glass |
| ICS | \nGlass |
| Implement Date | 2009-06-01 |