ISO/IEC 4873 introduced 32 additional control codes defined in the 80–9F hexadecimal range, as part of extending the 7-bit ASCII encoding to become an 8-bit system.
ˌaɪˌɛsˈoʊ slˈæʃ ˌaɪˌiːsˈiː fˈoːɹ θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti θɹˈiː ˌɪntɹədˈuːst θˈɜːɾi tˈuː ɐdˈɪʃənəl kəntɹˈoʊl kˈoʊdz dᵻfˈaɪnd ɪnðɪ ˈeɪɾi nˈaɪn ˈɛf hˈɛksɐdˌɛsɪməl ɹˈeɪndʒ, æz pˈɑːɹt ʌv ɛkstˈɛndɪŋ ðə sˈɛvənbˈɪt ˈæski ɛŋkˈoʊdɪŋ tə bɪkˌʌm ɐn ˈeɪtbˈɪt sˈɪstəm.