Hach Digesdahl 23130-20 - Page 58

49
Phosphorus, Ascorbic Acid (Method 8048)
A = mg/L reading from instrument
B = mL sample amount from table
C = mL analysis volume from table
Potassium (Method 8049)
A = mg/L reading from instrument
B = mL sample amount from table
C = mL analysis volume from table
Expected PO
4
conc. (mg/L)
Sample
amount (mL)
Analysis
Volume (mL)
Dilute to
0.12-6 40.0 20.0 25.0 mL
0.5-23 20.0 10.0 25.0 mL
2-90 10.0 5.00 25.0 mL
20-900 5.00 1.00 25.0 mL
200-9000 1.00 0.50 25.0 mL
Expected K
conc. (mg/L)
Sample
amount (mL)
Analysis
Volume (mL)
Dilute to
4-20 40.0 20.0 25.0 mL
15-80 20.0 10.0 25.0 mL
60-300 10.0 5.00 25.0 mL
200-1000 5.0 3.00 25.0 mL
600-3000 5.00 1.00 25.0 mL
2000-10000 3.0 0.500 25.0 mL
6000-30000 1.00 0.50 25.0 mL
A 2500×
BC×
------------------------ mg/L Total PO
4
=
A 2500×
BC×
------------------------ mg/L Total K=
DIGESTION PROCEDURE FOR AQUEOUS LIQUIDS, continued
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