Hach Digesdahl 23130-20 - Page 80

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6. Add deionized water to the volume indicated in the colorimetric
procedure.
7. Continue with the colorimetric procedure.
Sample and Analysis Volume Tables for Solids
The values in these tables reflect the Hach Spectrophotometer with the
narrowest concentration range.
Aluminum, Aluminon (Method 8012)
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Aluminum, ECR (Method 8326)
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Expected Al
conc. (mg/kg)
Sample
amount (g)
Analysis
Volume (mL)
10-400 0.500 20.0
25-1000 0.400 10.0
65-2600 0.300 5.00
480-20000 0.200 1.00
1900-80000 0.100 0.50
Expected Al
conc. (mg/kg)
Sample
amount (g)
Analysis
Volume (mL)
4-100 0.500 20.0
10-270 0.400 10.0
25-730 0.300 5.00
180-5500 0.200 1.00
750-22000 0.100 0.50
A 5000×
BC×
------------------------ mg/kg Total Al=
A 5000×
BC×
------------------------ mg/kg Total Al=
DIGESTION PROCEDURE FOR SOLIDS, continued
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