Bluelab® pH 7.0 Calibration Solution (250 ml)

Bluelab pH 7.0 Calibration Solution, 250 ml

The first step in every accurate pH calibration. Bluelab's pH 7.0 buffer is manufactured specifically for Bluelab meters and pens and referenced to high laboratory standards, so your pH readings stay trustworthy and your equipment lasts longer.

Why keep a bottle on hand

• Calibration standard for Bluelab pH gear: use with Bluelab pH meters, pens, and probes, and essential for all Bluelab pH products.
• Step one of a two-point calibration: calibrate to pH 7.0 first, then finish with pH 4.0 solution to set the slope.
• Lab-referenced accuracy: manufactured specifically for Bluelab products to protect long-term accuracy.
• 250 ml bottle: enough for many calibration sessions.

How to use

Clean your probe, decant a small amount of solution into a separate vessel, and calibrate following your device's instructions. Never dip probes directly into the bottle, and discard the decanted solution after use to avoid contamination. Store tightly sealed, cool, and out of direct sunlight. Pair with Bluelab pH 4.0 solution for a complete two-point calibration.