Ventilation Requirements for the Carriage of Dangerous

Ventilation Requirements for the Carriage of Dangerous
Goods
F.1 Zone 1 (Hazardous area)
F.1.1 Areas in which a dangerous gas/air mixture, dangerous vapours or a dangerous quantity and
concentration of dust are liable to occur from time to time are defined to be areas subject to explosion
hazard and are defined to be Zone 1.
F.1.2 Zone 1-areas are:
 closed cargo spaces intended for carriage of solid goods in bulk which may develop dangerous dust
 closed cargo spaces and closed or open ro-ro cargo spaces, intended for carriage of explosive substances
in packaged form, flammable liquids with a flash point  23 °C in packaged form, flammable
gases and highly dangerous bulk cargoes which under certain conditions develop a potentially explosive
gaseous atmosphere,
 enclosed or semi-enclosed rooms with non-closable direct openings to zone 1 areas
 ventilation ducts for zone 1-areas
 areas on open deck or semi-enclosed spaces on open deck within 1.5 m around ventilation openings
of ventilation ducts for zone 1-areas.