wɪðˌaʊt mˌɑːdɪfɪkˈeɪʃən, ˈʌðɚ fˈɔːɹmz ʌv ˌɪnoːɹɡˈænɪk nˈaɪtɹədʒən, fɔːɹ ˈɪnstəns nˈaɪtɹeɪt, ɑːɹ nˌɑːt ɪŋklˈuːdᵻd ɪn ðɪs mˈɛʒɚmənt.
Without modification, other forms of inorganic nitrogen, for instance nitrate, are not included in this measurement.