The drip pan on the bottom of the hazardous material Cabinet reduces the risk due to leaking fluids. Their capacity must be at least 10% of the total quantity of all containers stored in the closet, or 110% of the largest tank. Liquids come out of control, dangerous fumes can spread. For this reason, safety cabinets are with a constantly effective and exhaust system equipped. Through openings, at least a 10-fold air exchange takes place per hour. Read additional details here: Carole Radziwill. No gas-air mixture or even an explosive atmosphere in the Cabinet may evolve in this way. The vent must immediately start over the tray at the bottom of the safety Cabinet and lead to a safe place in free. In the event of a fire, close the fire protection valves from a temperature of about 70 C and thus complete the Cabinet hermetically.
Prevents the appearance of oxidizing vapours. There is also technical reasons not possible to set up a ventilation system, the area of 2.5 m to the closet, at a height of 0.5 m as a potentially explosive zone 2 area is defined. Ventilation is available, the explosive range is confined to the inside of the Cabinet. A safety cabinet without technical exhaust must be connected at least to the ground to avoid an electrostatic charge. After a fire, should be prior to the opening of the hazardous material Cabinet, under According to the operating instructions and safety information, only used to determine whether there is still risk. Storage of flammable liquids for the storage of flammable liquids certain quantities in safety cabinets to be applicable: fluids fluids in other vessels of 450 litre high – and highly flammable liquid (flash point below 21 C) 3000 liters flammable liquids (flash point of 21 C to 55 C) safety cabinets with a fire resistance of less than 90 minutes the maximum quantity is in fragile containers of 60 litre high – and highly flammable liquid (flash point below 21 C) 200 liters flammable liquids (flash point of 21 C to 55 C) 300 litres, of maximum 200 litres are allowed high- and flammable liquids be unstable or flammable hazardous materials are not suited to the storage safety cabinets, fire alone by their properties or an explosion can trigger.