9.0 pH Calibration Fluid

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GHL calibration fluids come in a handy 50 mL bottle, making regular probe calibration fast and easy. All GHL measurement electrodes are made of the highest laboratory grade materials. To ensure consistent performance and accuracy, pH probes should be calibrated regularly; we recommend re-calibration every 30-60 days. 


pH probes are calibrated on a 2-point sample system. When calibrating pH probes, select solutions at the extremes of either end of measurement. For example, when reading typical saltwater aquarium pH ranges (7.9 to 8.5) select pH 7.0 and pH 9.0 solutions. For calibration of a pH probe used in a calcium reactor or other low pH environments, with typical pH below 7, select pH 4.0 and 7.0 solutions.


What’s Included?

1x pH 9.0 Calibration Fluid, 50 mL

More Information
UPC 4260084320760
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Product Questions

Can this be used to calibrate other manufacturers testers such as Hanna? My thought is the solution is guaranteed to be pH 9.0 at 25C. Any decent pH tester could be calibrated since the solution is standardized.
Question by: James on Jul 25, 2023, 3:39 AM
This can be used for calibration of other PH testers
Answer by: Tyler Schafer (BRS Staff) on Jul 27, 2023, 10:22 AM