Hach Digesdahl 23130-20 Instrument Manual page 72

DIGESTION PROCEDURE FOR OILS,
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Phosphorus, Ascorbic Acid (Method 8048)
Expected PO
4
conc. (mg/kg)
20-900
50-2300
130-6200
1000-45000
×
A 2500
mg/kg Total PO
----------------------- - =
×
B C
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Potassium (Method 8049)
Expected K
conc. (mg/kg)
600-3400
1500-8500
4100-22000
15500-85000
31000-170000
×
A 2500
mg/kg Total K
----------------------- - =
×
B C
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
continued
Sample
amount (g)
0.250
0.200
0.150
0.100
4
Sample
amount (g)
0.250
0.200
0.150
0.100
0.100
63
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Analysis
Volume (mL)
20.0
10.0
5.00
1.00
Analysis
Volume (mL)
20.0
10.0
5.00
2.00
1.00
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