• Press the Chem Frm key to convert the result in mg/L of ammonia (NH
) and ammonium
3
(NH
).
+
4
• Press or to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Acetone
Alcohols
Aldehydes
Glycine
Hardness above 1 g/L
Iron
Organic chloramines
Sulfide
Various aliphatic and aromatic amines
44