The SF6 Emission Reduction Partnership for Electric Power Systems is a collaborative effort between EPA and the electric power industry to identify and implement cost-effective solutions to reduce sulfur hexafluoride (SF6 ) emissions. SF6 is a highly potent greenhouse gas used in the industry for insulation and current interruption in electric transmission and distribution equipment.
Oxygen (O2) 100 ppm vol.
Nitrogen (N2) 250 ppm vol.
Water (H2O) <5 ppm vol.
Hydrolysable fluoride, expressed as HF 0.3 ppm vol.
Carbon Tetra fluoride (CF4) 100 ppm vol.
Toxicity None Water content, maximum dew point, °C-62CGA
Sulfur hexafluoride (SF6) has a unique combination of physical and electrical properties that make it an excellent gaseous dielectric for high voltage power applications, such as circuit breakers. At the same time it possesses characteristics that enhance its performance in a variety of non-electrical applications such as aluminum degassing and magnesium casting. For more information see our Technical Bulletin.