DuraCal pH Buffers

Hamilton’s patented buffer solutions offer pH stability for up to five years, and their high buffering capacity ensures rapid and stable calibration.

Duracal ph buffers solutions

Patented buffer solutions for rapid and stable calibration.

Hamilton pH calibration solutions offer stability of up to five years before buffer expiration. Their high buffering capacity provides rapid and stable calibration with an accuracy of ±0.01 pH. Buffer solutions are tested against primary reference material from NIST and PTB. Each batch is also verified at an independent laboratory to ensure the accuracy of the buffer solution. 
DuraCal Buffer pH is a patented pH calibration solution available in a wide range of independently verified pH values (pH 1.09 - 12.00).

  • I could not be more pleased with my experience with Hamilton!

    My company has been using Hamilton probes for years and have always been happy with their performance! The team is always very helpful in trouble shooting issues and answering any questions that we may have about our probes. Overall, I could not be more pleased with my experience with Hamilton!

    Abigail Mann
    Bioprocessing Fermentation Associate at Heliae Development

  • Hamilton pH sensors are characterized by their high measuring accuracy and long service life.

    Hamilton pH sensors are characterized by their high measuring accuracy and long service life. This contributes significantly to the control of our processes. They also help us to guarantee the required product quality and to further optimize processes.

    Felix Colin
    Bioprocess Engineer, AB Enzymes GmbH

Benefits of using Hamilton DuraCal pH buffers:

  • Long-Term Stability and Accuracy

    Achieve consistently reliable results with buffers that offer a 5-year shelf life and high buffering capacity, ensuring long-term calibration stability with exceptional accuracy of ±0.01 pH.

  • Complete pH Range Coverage

    Cover the full spectrum of your pH calibration needs with our comprehensive buffer portfolio, spanning pH 1.68 to 12.00, also available in colorless variants.

  • Flexible Container Sizes

    Meet the demands of both laboratory and production environments with a range of bottle sizes. Each bottle features an integrated calibration compartment, enabling efficient calibration using just 15 mL of solution.

View all DuraCal pH Buffer solutions

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DuraCal pH Buffer Solutions Resources

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

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FAQ

How does the DuraCal buffer bottle work?

The Calpak bottle is a unique, patented design which includes a small chamber at the top of the bottle that fills with buffer solution when the bottle is squeezed. Click to see a simple pictorial of how to use this bottle.
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FAQ

Does freezing a DuraCal buffer cause any damage to it?

Freezing of liquid pH buffer solutions may occur during shipment. This document confirms that there are no negative effects to the buffer solution's composition or accuracy once returned to ambient room temperature.
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FAQ

How do I calibrate my Arc sensor?

ArcAir Basic and Advanced software have built in calibration and report tools for Arc sensors. Connect the Arc sensor to ArcAir and utilize the step by step calibration instructions. Click to learn more about connecting Arc sensors to ArcAir software.

Services

Application and Technical Support

Hamilton's Technical Support team is here to provide product trouble-shooting, repair, application support, virtual start-up support, and more.

Installation Support

Installation, set-up, and calibration support directly on-site. Our field service team ensures your sensors and cables are installed and functioning correctly.

Qualification IQ/OQ

Support for the qualification of Hamilton equipment including complete documentation. Readying your process for GMP manufacturing activities.

Maintenance and Calibration Services

Preventative maintenance and regular service contracts. Schedule on-site service dates to ensure your sensors are properly maintained and your process is optimized.

On-Site Service Diagnostics

Diagnosing and resolution of process system problems on-site. Finding the root cause and presenting a solution to fit your needs.

On-Site Training

User trainings and on-site trainings for technicians. Tailored training ranging from basic operation to advanced calibration and maintenance.

Backed by world-class service and support.

For over 75 years, the Hamilton name has been recognized globally for its unwavering commitment to quality. That pledge extends to creating long-term customer partnerships. We're proud to offer in-depth training courses, on-site field support, custom product builds, and so much more.

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