Projekta Nr.ISO 21129:2007
Nosaukums<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>
Reģistrācijas numurs (WIID)35674
Darbības sfēra<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>
StatussStandarts spēkā
ICS grupa91.120.10