Best Practices for Safe Handling of DuPont Refrigerants
Best Practices for Safe Handling
The new generation of DuPont refrigerants were extensively tested prior to introduction. They are as safe as, or safer than, the refrigerants they replace. However, anyone working with refrigerants should always follow these safety tips:
Store refrigerants in a clean, dry area out of direct sunlight. Never heat cylinders above 125°F (52°C).
Never pressurize systems or vessels containing DuPont refrigerants with air for leak testing or any other purpose.
Never tamper with cylinder valves or pressure relief devices.
Never refill disposable cylinders with anything. Do not use disposable refrigerant cylinders as compressed air tanks.
Wear protective clothing such as gloves and eye protection when handling any refrigerant.
Avoid contact with liquid refrigerant because frostbite may occur.
Avoid exposure to vapors through spills or leaks.
Evacuate the area if a large spill occurs. Return only after the area has been properly ventilated.
Verify proper cylinder hookup to the system.
Check to be sure the cylinder label matches the color code.
Open cylinder valves slowly.
Avoid rough handling of refrigerant cylinders.
Verify that the system has been completely evacuated with a vacuum pump before cutting any lines.
Before welding or brazing, evacuate the equipment and then break the vacuum with air or nitrogen. Do not perform any repair on pressurized equipment.
Always ventilate the work area before using open flames.
Note: Refer to the Material Safety Data Sheets (MSDSs) and the DuPont bulletin Safety of DuPont Refrigerants prior to handling and use.
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