Patented DuraCal liquid pH buffer solutions provide a perfect complement for calibration of pH sensors. Hamilton pH calibration solutions offer stability of up to five years before buffer expiration. High buffering capacity provides rapid and stable calibration with accuracy up to +/- 0.01pH. Buffer solutions are tested against primary reference material from NIST and PTB. Each batch is also verified at an independent laboratory to ensure buffer solution accuracy. This top-down and bottom-up traceability approach ensures high accuracy and allows pH 4.01, 7.00, 9.21, and 10.01 buffer solutions to be classified as Certified Reference Material (CRM).
Brochure - Liquid Solutions for Calibration
Catalog - Process AnalyticsDownload the Process Analytics sensor catalog to learn about the complete offering of Hamilton process sensors and accessories.
Catalog - Laboratory ElectrodesComplete overview of our pH and ORP electrodes for laboratories.
Brochure - BioPharmaInnovative solutions for process analytics in biotechnological and pharmaceutical industries.
How does the DuraCal buffer bottle work?
Stability and Accuracy of DuraCal pH Buffers
Temperature Influence on DuraCal pH BuffersTemperature has a direct effect on the pH of liquid buffer solutions. This page provides one easy place to see the temperature effects on all Hamilton pH buffers.
pH Probe AccessoriesThe articles below tackle the most essential pH probe accessories - calibration buffers and interconnection cabling.
pH CalibrationThe ever-changing nature of the electrochemical pH measurement requires that periodic calibration of the sensor is performed. The topic of calibration inevitably creates questions about the frequency and the procedure required to ensure the accuracy of the pH measurement.
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