Accurate calibration of the pH meter is critical to many processes in any lab.  Lab Procurement Services can provide buffers to suit virtually any application at an affordable price - pH 1 or 11, 55 gallon drum or 20mL single-use foil pack, or any pH or size in between, we have you covered!

Visit our Electrochemistry equipment category, and Beakers, Flasks, and Sampling Supplies sections for other great values on lab supplies you may need.  Contact us with any questions or assistance.

pH Buffers

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  1. Traceable, pH 7.000, 100ml pH Buffer Standard, PK6
    SKU: 4288-PK
    Manufacturer: Control Company
    Traceable, pH 7.000, 100ml pH Buffer Standard, PK6 (6 per PK )
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    was $26.95 Special Price $25.10
  2. Buffer Solution pH 4.0, 16 oz
    Manufacturer: Taylor Technologies
    Buffer Solution pH 4.0, 16 oz (1 per EA)
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    was $16.56 Special Price $12.65
  3. Acetate Buffer pH 4.0, For Chlorine, Iodine, 500ML, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $56.30 Special Price $42.23
  4. Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Reference Standard (1 per EA )
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    was $76.45 Special Price $62.21
  5. Buffer Solution pH 2.0, 4L, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $142.70 Special Price $107.03
  6. Red-Four(TM) Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Color-coded RED, Reference Standard
    Manufacturer: Spectrum Chemical
    Red-Four (TM) Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Color-coded RED, Reference Standard (6 per CS )
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    was $243.10 Special Price $197.80
  7. 1L Red Buffer Solution pH 4.0 @ 25°C, Poly Bottle
    Manufacturer: Midland Scientific
    1L Red Buffer Solution pH 4.0 @ 25°C, Poly Bottle (1 per EA )
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    was $21.75 Special Price $18.28
  8. Buffer Solution pH 6.0, 1L, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $56.40 Special Price $42.30
  9. Buffer Solution pH 9.0, 20L, Cubitainer®
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $331.00 Special Price $248.25
  10. Buffer Solution pH 11.0, 4L, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 12, Traceable to NIST, UN Number: (1 per EA)
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    was $155.20 Special Price $116.40
  11. Buffer Solution pH 2.0, 10L, Cubitainer®
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $230.40 Special Price $172.80
  12. Acetate Buffer pH 4.0, For Chlorine, Iodine, 10L, Cubitainer®
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $519.60 Special Price $389.70
  13. Buffer Solution pH 6.86, 20L, Cubitainer®
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $313.80 Special Price $235.35
  14. Buffer Solution, pH 2.00 +/- 0.02 @ 25 DEG C, Reference Standard, 1L, CAS# 110-65-6
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 2.00 +/- 0.02 @ 25 DEG C, Reference Standard is a mixture of weak acid and its conjugate base in order to prevent changes in the pH of a solution. Buffer solutions let you calibrate any pH tester to ensure accurate readings when measuring pH in water samples and process liquids.

    (1 per EA )
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    was $97.75 Special Price $79.53
  15. Acetate Buffer, pH 6.0, For Aluminum, 500ML, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $73.90 Special Price $55.43
  16. Buffer Solution, (Giordano) pH 6.4, 500ML, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $36.20 Special Price $27.15
  17. Buffer Solution pH 6.86, 500ML, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $37.10 Special Price $27.82
  18. Yellow-Seven(TM) Buffer Solution, pH 7.00 (+/-0.01 @ 25 DEG C), Color-coded Yellow, Reference Standard
    Manufacturer: Spectrum Chemical
    Yellow-Seven (TM) Buffer Solution, pH 7.00 (+/-0.01 @ 25 DEG C), Color-coded Yellow, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum’s own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (1 per EA )
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    was $61.80 Special Price $50.28
  19. Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Reference Standard (1 per EA )
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    was $65.95 Special Price $53.65
  20. Buffer Solution pH 7.70, 20L, Cubitainer®
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $403.60 Special Price $302.70
  21. Buffer Solution pH 2.0, 1L, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)
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    was $60.20 Special Price $45.15
  22. Acetate Buffer pH 4.6-4.7, For Bromide, 1L, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): 36, Traceable to NIST, UN Number: (1 per EA)
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    was $84.70 Special Price $63.53
  23. pH 4.00 Calibration Buffer Solution 8 oz
    Manufacturer: Apera Instruments
    pH 4.00 Calibration Buffer Solution 8 oz, 0.01 pH Accuracy at 25°C (77°F) High Accuracy (±0.01 pH): standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). Ideal for the calibration of all kinds of pH meters/testers Color-coded, D (1 per EA )
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    was $11.00 Special Price $9.50
  24. 250mL Red Buffer Solution pH 4.0 @ 25°C, Poly Bottle
    Manufacturer: Midland Scientific
    250mL Red Buffer Solution pH 4.0 @ 25°C, Poly Bottle (1 per EA )
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    was $28.80 Special Price $6.56
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