
Specification. Indicator plates for fire hydrants and emergency water supplies.
NORMA vydaná dňa 30.4.1976
Označenie normy: BS 3251:1976
Dátum vydania normy: 30.4.1976
Počet strán: 16
Približná hmotnosť: 48 g (0.11 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
Dimensions for sheet steel, cast iron, aluminium alloy or plastics indicator plates. Colours and finish, tests for impact resistance, colour stability, resistance to weathering, flexibility and security of removable numerals. Recommendations for fixing. Status: Confirmed