a mixture of indicators of the same function chosen so that their transition intervals are approximately coincident and of such a composition that the resultant overall colour change of the mixture is more easily distinguished than that of either indicator used separately
Reagendid: ... 4.8. indikaatorsegu, mis koosneb võrdsetest ruumaladest metüüloranžilahusest kontsentratsiooniga 2 g/l vähemalt 95% (mahuprotsent) etanoolis ja metüleensiniselahusest kontsentratsiooniga 1 g/l vähemalt 95% (mahuprotsent) etanoolis.
