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Oakton pH Calibration Buffer, 4.01, 1.0 L

Item# DO-05942-22

$25.50 USD/EACH

Quantity Discounts
Qty: 6
Price: $22.95

  • Standardized against NIST traceable materials
Oakton® buffers for meters with 0.01 resolution are standardized against NIST-traceable pH references within 0.01 pH at 77°F (25°C). Store buffers away from direct sunlight. Sold in individual bottles; 500-mL bottles are also available in cases of 12, 4-L(1-gal) bottles in cases of four.
Product Type pH Buffers
Volume (mL) 1000
Description pH 4.01
Qty/ea 1
Brand Oakton

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Questions and Answers

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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    What is the shelf life?
    Asked on 3/8/2014 by Bill from Bloomfield, Ontario

    1 answer



      The shelf life is two years if stored at room temperature away from direct sunlight.

      Answered on 3/10/2014 by Dan from Technical Support
  • Q:

    Is this solution used on a pH meter or the manual dipstick pH strips?
    Asked on 4/14/2010 by Christina from Indianapolis,IN

    1 answer



      This solution is generally used to calibrate pH meters and serve as a temporary short-term storage solution. But, it could be used to check the accuracy of pH strips, if wanted.

      Answered on 4/15/2010 by Jen from Technical Support
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Product Reviews


by PowerReviews
Oakton pH Calibration Buffer, 4.01, 1.0 L

(based on 1 review)

Reviewed by 1 customer

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A quality buffer solution size

By Dewey

from Peck, KS

About Me Lab Assistant

Verified Buyer


  • Accurate
  • Easy To Use
  • Works Properly


    Best Uses

    • In The Lab

    Comments about Oakton pH Calibration Buffer, 4.01, 1.0 L:

    *A convenient container size for a buffer solution.
    *A step up from using the packets

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