ISO/TC 163/SC 1
| Project No. | ISO 21129:2007 |
|---|---|
| Title | <p>ISO 21129:2007 specifies a box method for determining the water-vapour permeability of building materials. The box method is used primarily to measure the water-vapour permeance of materials that have low water-vapour resistance, in which the influence of the surface-humidity transmission-resistance cannot be ignored.</p> |
| Registration number (WIID) | 35674 |
| Scope | <p>ISO 21129:2007 specifies a box method for determining the water-vapour permeability of building materials. The box method is used primarily to measure the water-vapour permeance of materials that have low water-vapour resistance, in which the influence of the surface-humidity transmission-resistance cannot be ignored.</p> |
| Status | Standarts spēkā |
| ICS group | 91.120.10 |