OSHA HVAC-R Refrigerant Safety
The Occupational Safety and Health Administration (OSHA) classifies most refrigerants as hazardous materials (HAZMAT) and has introduced strict regulations concerning their storage and use in the workplace.
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Storage
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Freon and other refrigerants must be stored in approved HAZMAT containers, with material safety data sheets (MSDS) readily available in the workplace.
Transport
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The Department of Transportation classifies most refrigerants as Division 2.2 gases, meaning nonflammable and non-toxic (although in high concentrations they can act as an asphyxiant by crowding out oxygen in the air). However, some refrigerants are classified as Division 2.1, meaning they are flammable. When transporting these gases, appropriate signage and placarding must be used.
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Inert Gas Considerations
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Refrigerants can cause dizziness. Vapors are typically heavier than air when first released and spread along the ground. Possible hazards include container explosion when heated. When cylinders full of compressed gas of any type are used, they may rocket, causing injury or even death.
Safety Measures
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If you have a HAZMAT incident involving refrigerants, isolate the spill or leak area, stay upwind and ventilate the area. Call 911. If someone is overcome with fumes administer oxygen if breathing is difficult or artificial respiration if victim is not breathing.
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References
Resources
- Photo Credit Toxic hazard flag image by Stasys Eidiejus from Fotolia.com
