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pH Buffer 4 250ml

pH Buffer 4 250ml

£3.25

Product Description

We recommend that you calibrate you pH meter weekly. Most meters can be calibrated with 7.0 and 4.0 buffers. It is not recommended to reuse calibration solution once it has been used, it is no longer sterile. Pour a small amount into a shot glass and and place your meter or probe inside the glass for calibration. Suitable for all makes and models of pH pens and meters.