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  • Color-Coded pH Buffers

    Ricca Chemical
    …traceable to NIST Standard Color-coded for quick reference Accuracy ±0.01 pH at 25°C pH temperature chart, lot numbers and expiration dates on each label pH 4.0 buffer is colored red, 7.0 buffer is yellow and 10.0 buffer is blue. Thomas numbers 4120R54, R60 and R66 are single-use pouches.
  • pH Buffers

    Ricca Chemical
    Standardized and certified traceable to NIST Standard Reference Material Accuracy ?0.01 pH at 25°C pH temperature chart, lot numbers and expiration dates on each label
  • Buffer, pH 9.00

    Ricca Chemical
  • Buffer, pH 6.000, Precision

    Ricca Chemical

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