NEN-EN 495-4
Thermoplastic and elastomeric roofing and sealing sheets - Determination of water vapour transmission properties
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 July 1991 |
| Status: | inactive |
| Page Count: | 8 |
| ICS Code (Roofs): | 91.060.20 |
scope:
This European Standard specifies a method for the determination of the water vapour transmission rate (WVT) and for the calculation of the water vapour diffusion resistance coefficient (µ ) of thermoplastic and elastomeric roofing and sealing sheets.
Document History
NEN-EN 495-4
July 1, 1991
Thermoplastic and elastomeric roofing and sealing sheets - Determination of water vapour transmission properties
This European Standard specifies a method for the determination of the water vapour transmission rate (WVT) and for the calculation of the water vapour diffusion resistance coefficient (µ ) of...