• pH Buffer Solution, 4.0, 1 gal.
  • pH Buffer Solution, 4.0, 1 gal.
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Cat No. - NC-5949
Price: $49.95
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Description 

This pH calibration solution is colored red for easy recognition. Standardized at 25°C against NIST standard reference material. Each jug labeled with lot number and expiration date. Follow the instructions of your electronic pH meter to use this solution for periodic calibration.