Phosphate analyzer Aztec AW636

• Measurement range
  0 to 50 ppm PO₄ (0 to 50 mg/L)
• Chemical method
  Phosphomolybdenum blue
• Background color correction
  Compensated at the measurement wavelength
• Measurement frequency
  1 to 4 measurements per hour (User-selectable)
• Accuracy / maximum measured error
  ±5 % of reading or ±0.005 ppm (whichever is the greater)
• Repeatability
  ±5 % of reading or ±0.030 ppm (whichever is the greater)
• Resolution
  0.001 ppm or 1 ppb
• Measurement units
  mg/l, ppm, ppb, μg/l
• Calibration
  2-point, automatic calibration