Gives a method for determining the resistance of fabrics to penetration by water primarily intended for dense fabrics such as ducks, tarpaulins and tentings.
BS EN 20811:1982 history
1970BS EN ISO 811:2018 Glass containers - Resistance to vertical load - Test method
1982BS EN 20811:1982 Textiles - Determination of resistance to water penetration - Hydrostatic pressure test