Certifications 1) Resistance to air infiltration BSI (United Kingdom) BS EN 12427:2000 "Industrial, commercial and garage doors and gates - Air permeability - Test method" ASTM (USA) ASTM E-283 "Test method for rate of air leakage through exterior windows, curtain walls and doors" 2) Resistance to water penetration BSI (United Kingdom) BS EN 12489:2000 "Industrial, commercial and garage doors and gates - Resistance to water penetration - Test method" ASTM (USA) ASTM E-547 "Test method for water penetration of exterior windows, curtain walls and doors by cyclic static air pressure difference"