This European standard applies to bitumen plastic and rubber sheets for roof waterproofing and specifies procedures for determining the watertightness, i.e. the resistance to ponding water or to hydraulic pressure absorbed by a limited part of the surface, of factory made products.
DS/EN 1928:2000 history
2000DS/EN 1928:2000 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of watertightness