Description
Product Code: HI70004P25
pH 4.01 calibration solutions supplied in handy and cost effective 20 ml sachets. Each pouch contains sufficient solution for one calibration. The buffer solutions are individually sealed inside each sachet and protected against the ingress of light and air. Hence when you calibrate your meter in a pouch, it is like adjusting your meter in a freshly opened buffer solution.
Box of 25 Pouches.
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