NOTE: The color guideline is not a substitute for reading cylinder labels and markings.
Refrigerants are grouped in four classes in order to create more color opportunities within readily identifiable container styles and to clearly differentiate Flammable Refrigerants
|Refrigerant||Color Name||Color # (Pantone)||Color||Class|
|134A||Light Blue (Sky)||2975||II|
|407C||Medium Brown (Brown)||471||II|
|507A||Blue Green (Teal)||352||II|
|BMP407C||Medium Brown (Brown)||471||II|
Freon is a tasteless, mostly odorless gas. When it is deeply inhaled, it can cut off vital oxygen to your cells and lungs. Limited exposure — for example, a spill on your skin or breathing near an open container — is only mildly harmful. However, you should try to avoid all contact with these types of chemicals.
Widely used in many air conditioning and refrigeration systems globally.
It is a hydro-fluorocarbon (HFC) that does not contribute to ozone depletion; also the first non-ozone-depleting fluorocarbon refrigerant to be commercialized.
To remove chlorine from the refrigerant, manufacturers created another set of refrigerants called HFCs (or Hydro Fluro Carbons). Although they also have the potential for global warming, but still, they are better than HCFCs as they do not deplete the ozone layer. The most common HFC used in air conditioners is R-410A.
Currently used refrigerants in Vapor compression units: R410A, R407C, R134a, R404a, R717 (Ammonia); R22 is being phased out; R123 is another refrigerant which is under use currently. Refrigerant used in vapor absorption chiller is DM Water.