NP EN ISO 7783-2:2001 Paints and varnishes Coating materials and coating systems for exterior masonry and concrete Part 2:Determination and classification of water-vapour transmission rate(permeability)(ISO 7783-2:1999)
2001NP EN ISO 7783-2:2001 Paints and varnishes Coating materials and coating systems for exterior masonry and concrete Part 2:Determination and classification of water-vapour transmission rate(permeability)(ISO 7783-2:1999)