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Hanna pH 4.01 Solution, 20 mL Sachet

$2.00
HANNA®' buffer solutions are prepared according to precise formulas and are standardized with a pH meter calibrated according to the NIST standards.

The 20 mL sachets are single-dose whereas, for more demanding applications, you may choose between packages of 230 mL, 500 mL, 1 Liter or 1 Gallon (3.78 L).

This buffer value is widely used in water purification plants, in the food industry and where ever the pH is expected to be slightly acidic.


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  • Model: 5507
  • Shipping Weight: 0.5lbs
  • Manufactured by: Hanna


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