or
AMCO PA-1 Linear Calibration Kit Meets EPA linear calibration recommendations. Includes 125mL bottles of the following NTU values: 0.2 0.4 0.6 0.8 and 1.0.
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AMCO PA-1 Linear Calibration Kit Meets EPA linear calibration recommendations. Includes 125mL bottles of the following NTU values: 2.0 4.0 6.0 8.0 and 10.
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