Rinse electrode with distilled water, 2 types of buffer solution selected to cover a range that is made to measure, for example, that solution.Sample buffer, and must not have different temperature does not exceed 2 oC dip electrode into a buffer solution for pH meter reads one machine until the value.Press the button to save the value (s) slide in a pH meter electrode electrode with distilled water wash, dip into the second buffer solution, pH meter readings until the value.Press the button to save the value (s) slide in the pH meter can calculate values for the slope came.Let. The machine will display the value of the slope, or report results as% efficiency.
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