GB/T 5480.7-1987
Replaced
GB/T 30801-2014
Active
National standards
GB/T 30801-2014 Hygrothermal performance of building materials and products—Determination of water-vapour transmission properties—Box method
GB/T 30801-2014 Hygrothermal performance of building materials and products—Determination of water-vapour transmission properties—Box method
Basic Information
Standard Code:
GB/T 30801-2014
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Insulation, sound-absorbing, lightweight, and fire-resistant materials
ICS Name:
The insulation of buildings
Publish Date:
2014-06-24
Implement Date:
2015-02-01
Pages:
13 pages
Scope
This standard specifies the test method for determining the water vapor permeability of building materials by the box method. The box method is mainly suitable for low water vapor permeability materials, whose surface water vapor permeability resistance cannot be ignored.
Development Information
Referenced Standards
Adopt standards
ISO 21129:2007
Related Standards
GB/T 10299-1988
Replaced
GB/T 10299-1988 Test method for hydrophobic nature of thermal insulation
GB/T 11833-1989
Replaced
GB/T 11833-1989 Thermal insulation—Determination of steady-state thermal transmission properties—Spherical method
GB/T 13475-1992
Replaced
GB/T 13475-1992 Building element—Determination of steady-state thermal transmission properties—Calibrated and guarded hot box
GB/T 13480-1992
Replaced
GB/T 13480-1992 Test method for measuring compressive properties of mineral wool products
GB/T 4132-1996
Replaced