Phosphate Low Range Specification.....

Range: 0.00 to 2.50 mg/L
Resolution: 0.01 mg/L
Accuracy: ±0.04 mg/L ±4% of reading
Typical EMC Eviation: ±0.01 mg/L
Light Source: Tungsten lamp with narrow band interference filter @ 610 nm
Method: Adaptation of the Ascorbic Acid method. The reaction between phosphate and the reagent causes a blue tint in the sample.