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Buffer pH 4.000 500ml

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pH Calibration buffers for tight tolerances
  • For meters with 0.001 resolution
  • Precision reference standard: pH 4.000 ±0.002 at 25°C


Certificate of Analysis designed to comply with ISO Guide 31 “Reference Materials — Contents of Certificates and Labels.-


Oakton High-accuracy pH buffer solutions are sold in 500 mL glass bottles, individually or as a case of twelve.
Buffers are color-coded for easy visual identification.

Store away from direct sunlight.

Specifications & Description

  • Buffer Value: 4
  • Buffer Kit Values: 4.000 ±0.002 at 25°C
  • Volume (mL): 500
  • Color: Red
  • Description: High-Accuracy Buffer Solution, pH 4.000; 500 mL
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