This standard specifies requirements for: a) fire hose delivery couplings to fit hoses of nominal diameter 45 mm, 65 mm, 70 mm and 100 mm, b) suction couplings to fit hoses of nominal diameter 80 mm, 90 mm, 100 mm, 115 mm, 125 mm, 140 mm, and 150 mm, c) connectors, and d) branch pipes and nozzle connections for delivery hoses; ENVIRONMENT. HEALTH PROTECTION. SAFETY (ICS 13)

BOS 305:2021 Firefighting equipment ― Hose couplings, connectors, branch pipe and nozzle connections (27 page(s), in English)

This standard specifies requirements for:

1.    fire hose delivery couplings to fit hoses of nominal diameter 45 mm, 65 mm, 70 mm and 100 mm,

2.    suction couplings to fit hoses of nominal diameter 80 mm, 90 mm, 100 mm, 115 mm, 125 mm, 140 mm, and 150 mm, and

3.    connectors