Chemical Cabinet Ventilation Requirements

Chemical storage cabinets whether used for flammables corrosives or pesticides poisons come with capped bung openings that allow for ventilation.

Chemical cabinet ventilation requirements.

The msds must be readily available when needed. A compliant ventilation system for corrosive storage cabinets must comply with requirements outlined in as3780 2008. Each chemical you store must have an accompanying msds that lists the substance s known toxicity flammability or acidic or caustic properties as well as how the chemical behaves in fire an accidental exposure incident and how spills are treated. If excessive levels of chemical vapors are building up in the cabinet it doesn t necessarily mean the cabinet must be vented.

Class 4 1 flammable solids storage cabinets. While cabinet manufacturers may provide the bungs for ventilation purposes venting flammable liquid storage cabinets is not required or even recommended by any federal regulatory agency. Joints shall be riveted or welded and shall be tight fitting. Industrial ventilation generally involves the use of supply and exhaust ventilation to control emissions exposures and chemical hazards in the workplace.

Steel piping is recommended for ventilation ducting of a cabinet containing flammable chemicals. Osha has three basic legal requirements for storing chemicals. Section 6 2 4 of this standard states. The indoor chemical storage cabinets that require ventilation include.

Division 5 2 organic peroxide storage cabinets. Place cabinets in a cool dry location out of direct sunlight and away from any possible heat or ignition source. The australian standard that sets out the ventilation requirements for corrosive storage cabinets is as3780 2008 the storage and handling of corrosive substances. Before venting a cabinet to lower vapor levels consider the following options.

Ventilation requirements according to as3780 2008. And a written training plan with information on training sessions and dates for all employees working with these chemicals is also. Division 5 1 oxidising agent storage cabinets. Ventilation ducting of a flammables cabinet should provide at least the same level of fire protection as the cabinet walls and be resistant to vapours fumes or dust in the cabinet.

The only time a chemical storage cabinet should be ventilated is if the ventilation in the laboratory or chemical stores area is inadequate or if state or local law requires cabinet ventilation. Traditionally nonindustrial ventilation systems commonly known as heating ventilating and air conditioning hvac systems were built to control temperature humidity and odors. The cabinet including the door shall be double walled with 1 inch air space between the walls. Venting a chemical storage cabinet is not necessary for fire protection.