pH 4.00 Calibration solution

Availability: In stock (8)

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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