GB/T 38586-2020 Vacuum insulating glass

GB/T 1216-1985 Micrometers GB/T 1216-2004 external micrometer GB/T 1216-2018 External micrometer 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 8484-2002 Graduation and test method for thermal insulating properties of windows GB/T 8484-2008 Graduation and test method for thermal insulating properties of doors and windows GB/T 8484-2020 Test method for thermal insulating performance for building exterior doors and windows 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 GB/T 19889.3-2005 Acoustics—Measurement of sound insulation in buildings and of building elements—Part 3:Laboratory measurements of airborne sound insulation of building elements GB/T 22476-2008 Calculation and determination of steady-state U values(thermal transmittance) of multiple glazing GB/T 22523-2008 Feeler gauge GB/T 19889.3-2026 Acoustics—Field measurement of sound insulation in buildings and of building elements—Part 3:Airborne sound insulation of facade elements and facades