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High accuracy sensors require high accuracy calibration solutions. Atlas Scientific pH calibration solutions are made using a four-stage process to ensure the highest accuracy.
For accurate calibration of pH probes.
• pH 4.00• Works with any pH Probe• 125ml (4oz) or 250ml (8oz)• ±0.02 pH at 25°C• Standardized against NIST-certified references• 2 year shelf life at room temperature
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