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194
ST
AND
ARD METHODS
Description
Range
Method
Potassium
0.0 to 20.0 mg/L
Tetraphenylborate
Silica LR
0.00 to 2.00 mg/L Heteropoly Blue
Silica HR
0 to 200 mg/L
EPA
Silver
0.000 to 1.000 mg/L PAN
Sulfate
0 to 150 mg/L
Barium Chloride
Surfactants, Anionic
0.00 to 3.50 mg/L EPA 425.1
Zinc
0.00 to 3.00 mg/L Zincon