Hanna Instruments HI83325 - Page 41

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METHOD PROCEDURES
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AMMONIA LOW RANGE
• Press Chem Frm to convert the result to mg/L of ammonia (NH
3
) and ammonium (NH
4
+
).
• Press the  or  key to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
• Hardness above 1 g/L
• Iron
• Sulfide may cause turbidity
• Organic compounds like acetone above 0.1%, alcohols, aldehydes, aliphatic and aromatic amines,
chloramines, glycine, or urea above 10 mg/L, to remove the interference distillation is required