24
METHOD PROCEDURE
• Press the
key and use the functional keys to select
Chemical Form
.
• Use the functional keys and press
Select
to change the displayed chemical formula
to
mg/L
of
potassium oxide (K
2
O).
INTERFERENCES
Interference may be caused by:
• Chloride above 12000 mg/L
• Calcium above 10000 mg/L CaCO
3
• Magnesium above 8000 mg/L CaCO
3
• Sodium above 8000 mg/L
• Ammonium above 10 mg/L