some species prefer a more acidic or alkaline environment

Rinse Thoroughly: Always rinse the electrode with distilled water between buffer solutions

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and water quality testing

Dimensions: 4 L × 4 W × 16 H cm (2 L × 2 W × 6 H in)

Milwaukee pH Calibration & Maintenance Kit | pH 4.01 & 7.01 Buffers + Storage & Cleaning Solutions | 4 x 230mL 810666009211 some species prefer a moreMilwaukee pH Calibration & Maintenance Kit pH 4. 01 & 7. 01 Buffers + Storage & Cleaning Solutions 4 x 230mL Everything you need for accurate pH meter calibration and long term electrode care in one complete kit. The Milwaukee pH Calibration & Maintenance Kit bundles four essential lab grade solutions: pH 4. 01 and pH 7. 01 NIST traceable buffer solutions, electrode storage solution, and electrode cleaning solution all in generous 230mL light blocking