Chemical Cabinet Ventilation Requirements

Before venting a cabinet to lower vapor levels consider the following options.

Chemical cabinet ventilation requirements.

Steel piping is recommended for ventilation ducting of a cabinet containing flammable chemicals. The indoor chemical storage cabinets that require ventilation include. Section 6 2 4 of this standard states. Place cabinets in a cool dry location out of direct sunlight and away from any possible heat or ignition source.

Venting a chemical storage cabinet is not necessary for fire protection. 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. Class 4 1 flammable solids storage cabinets. The australian standards outline different ventilation requirements for each dangerous goods classification.

Osha has three basic legal requirements for storing chemicals. The cabinet including the door shall be double walled with 1 inch air space between the walls. Joints shall be riveted or welded and shall be tight fitting. A compliant ventilation system for corrosive storage cabinets must comply with requirements outlined in as3780 2008.

Ventilation requirements according to as3780 2008. Division 5 2 organic peroxide storage cabinets. The australian standard that sets out the ventilation requirements for corrosive storage cabinets is as3780 2008 the storage and handling of corrosive substances. Division 5 1 oxidising agent storage cabinets.

Doors shall be well fitted self closing and equipped with a latching device. 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. Chemical storage cabinets whether used for flammables corrosives or pesticides poisons come with capped bung openings that allow for ventilation. Traditionally nonindustrial ventilation systems commonly known as heating ventilating and air conditioning hvac systems were built to control temperature humidity and odors.

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. The bottom of the cabinet shall be liquid tight to a height of at least two inches. And a written training plan with information on training sessions and dates for all employees working with these chemicals is also.