οι οδηγιες του γραφουνε οτι μετραει ολικη.
"the values on the color chart are in mg/l total ammonia(that is NH3 plus NH4+)"
The kit can perform approx. 50 measurements and can detect 0.5 ppm of total ammonia easily.
http://www.salifert.com/
τουλαχιστον αυτο λενε αυτοι...