Hach Digesdahl 23130-20 - Page 86

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Phosphorus, Ascorbic Acid (Method 8048)
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Potassium (Method 8049)
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Expected PO
4
conc. (mg/kg)
Sample
amount (g)
Analysis
Volume (mL)
10-450 0.500 20.0
25-1100 0.400 10.0
67-3100 0.300 5.00
500-23000 0.200 1.00
2000-93000 0.100 0.50
Expected K
conc. (mg/kg)
Sample
amount (g)
Analysis
Volume (mL)
300-1700 0.500 20.0
800-4200 0.400 10.0
2000-11000 0.300 5.00
15000-85000 0.200 1.00
62000-300000 0.100 0.50
A 2500×
BC×
------------------------ mg/kg Total PO
4
=
A 2500×
BC×
------------------------ mg/kg Total K=
DIGESTION PROCEDURE FOR SOLIDS, continued
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