JG/T 309-2011
Determination and classification of water-vapour transmission rate(permeability) for exterior wall coatings (English Version)
- Standard No.
- JG/T 309-2011
- Language
- Chinese, Available in English version
- Release Date
- 2011
- Published By
- Professional Standard - Construction Industry
- Latest
- JG/T 309-2011
- Scope
- This standard specifies the terms and definitions, principles, instruments and materials, test pieces, procedures, result expression, accuracy, classification and test reports for the measurement method and classification of water vapor transmission rate of exterior wall coatings. This standard applies to exterior wall coatings used on porous substrates such as bricks, stones, and concrete in industrial and civil buildings. This standard does not apply to products that form films or affect the porosity of porous substrates.
JG/T 309-2011 history
- 2011 JG/T 309-2011 Determination and classification of water-vapour transmission rate(permeability) for exterior wall coatings
