GB/T 39548-2020
真空绝热板湿热条件下热阻保留率的测定
Determination of retention rate on thermal resistance of vacuum insulation panels(VIP) in hygrothermal conditions
- 实施日期
- 2021-11-01
- ICS 分类
- 91.100.60
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 39548-2020
Determination of retention rate on thermal resistance of vacuum insulation panels(VIP) in hygrothermal conditions
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GB/T 9966.4-2020
Test methods for natural stone—Part 4:Determination of abrasion resistance
GB/T 9966.3-2020
Test methods for natural stone—Part 3:Determination of water absorption,bulk density,true density and true porosity
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Test methods for natural stone—Part 2:Determination of dry,wet and after freezing flexural strength
GB/T 9966.1-2020
Test methods for natural stone—Part 1:Determination of dry,wet and after freezing compressive strength
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Test methods of precast concrete products for tunnel