It took two (2) years, but HFO-1234yf is now an NFPA Flammable “4”
Back in early 2015, I began working with some clients who were questioning their having to enter into the Process Safety arena because of a new refrigerant that was going into automobiles. Early in our discussions I was appalled that this flammable refrigerant had been “marketed and sold” with the description of being a “mildly flammable”…...
