pH measurements are only as accurate as the buffer solutions used for sensor calibration. METTLER TOLEDO offers a selection of quality pH buffers to match your specific requirements. No matter if you look for traceable technical buffers or buffers that are certified by an accredited body, you will find the right solution. Maximum accuracy is guaranteed with our NIST/DIN buffers!
Reliable all-rounders: Technical pH buffers
All METTLER TOLEDO’s pH buffers are traceable to certified reference buffer solutions according to IUPAC recommendations 2002. The quality inspection certificate, available for every bottle and sachet, guarantees the stated values and traceability
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ManufacturerMettler-Toledo GmbH
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Country of OriginSwitzerland
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pH value at 25 °C2.00, 4.01, 5.00, 7.00, 9.21, 10.00, 10.01, 11.00, Rainbow bottles I (3 × 2 bottles 250 mL 4.01 / 7.00 / 9.21), Rainbow bottles II (3 × 2 bottles 250 mL 4.01 / 7.00 / 10.00), Rainbow sachets I (3 × 10 sachets 20 mL 4.01 / 7.00 / 9.21), Rainbow sachets II (3 × 10 sachets 20 mL 4.01 / 7.00 / 10.01), 8.00
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Size250ml, 6 × 250 mL, 30 sachets 20 mL