fˈɜːst ˈæʃɹiː dˈɪdʒɪt ɪz ðə nˈʌmbɚɹ ʌv kˈɑːɹbən ˈæɾəmz mˈaɪnəs wˈʌn sˈiː wˈʌn; ðə sˈɛkənd dˈɪdʒɪt ɪz ðə nˈʌmbɚɹ ʌv hˈaɪdɹədʒən ˈæɾəmz plˈʌs wˈʌn ˈeɪtʃ plˈʌs wˈʌn; ðə θˈɜːd dˈɪdʒɪt ɪz ðə nˈʌmbɚɹ ʌv flˈʊɹɹiːn ˈæɾəmz; ˌɛni ɹᵻmˈeɪnɪŋ spˈeɪsᵻz ɑːɹ klˈoːɹiːn ˈæɾəmz.
First ASHRAE digit is the number of carbon atoms minus 1 (C-1); the second digit is the number of hydrogen atoms plus 1 (H+1); the third digit is the number of fluorine atoms; any remaining spaces are chlorine atoms.