Here, a classification of bitumen emulsions based on letters and numbers is described, considering charges, viscosities, and the type of bitumen.
hˈɪɹ, ɐ klˌæsɪfɪkˈeɪʃən ʌv bɪtˈuːmɛn ɪmˈʌlʃənz bˈeɪst ˌɔn lˈɛɾɚz ænd nˈʌmbɚz ɪz dᵻskɹˈaɪbd, kənsˈɪdɚɹɪŋ tʃˈɑːɹdʒᵻz, vɪskˈɔsᵻɾiz, ænd ðə tˈaɪp ʌv bɪtˈuːmɛn.