Oakton, Buffer Pack; 500 mL of each pH 4.01, 7.00, and 10.01. 

All Oakton pH buffers are traceable to NIST standard reference materials.
Buffer solutions help you calibrate pH instruments to ensure accuracy.

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Oakton® pH Buffer Bottles have pH/temperature tables printed on the labels for accurate calibrations:

• Manufactured under ISO 9000 quality guidelines and traceable to NIST standards
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days
• Store buffers away from direct sunlight.

Colour coded for quick visual reference:
- pH 4.01 buffer in red
- pH 7.00 buffer in yellow
- pH 10.01 buffer in blue

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3 Pack of pH Buffers.