HFO Refrigerants. HFO (hydrofluoro-olefin) refrigerants are the fourth generation of fluorine-based refrigerants. HFC refrigerants are composed of hydrogen, fluorine and carbon atoms connected by single bonds between the atoms.
Quarter means one year divided by 4 (quartering thâ¦e year) Some companies have fiscal year not calendar year quarters. In this case, find out what is their year end date. For example, if it's fiscal year end on May 31, the first Q starts June 1 to August 31, and so on.
Most companies end their accounting periods on the last day of ea â¦ ch month, but some companies choose to close on the Saturday closest to to the end of the month. By doing this, they keep comparisons consistent: 4 weeks per month, 13 weeks per quarter, 52 weeks per year.