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- Pulbere pentru prepararea unei soluții pentru calibrarea pH-metrelor electronice.
Buffer pH 4.01 + 6.86.
Tolerance range ± 0.01 pH.
No color, no contamination of the electrode.
Prepare the solution in a glass or inert plastic container.
Shelf life after reconstitution: 1 month.
Store in a cool place away from sunlight.
Economical, reusable, 250 ml buffer capacity.
On the back of the sachet, there is a table for correcting the buffer value depending on the temperature.
Directions for use:
Pour the contents of the sachet into 250 ml of demineralized water (at a temperature of 25 ° C), stir with a plastic spoon and wait until the powder is completely dissolved,
then calibrate the meter as instructed, using a solution with a specific pH value.
The pH meter should be calibrated with the buffer closest to the expected pH of the solutions that we usually measure.
For example, if we usually measure acidic solutions, the meter should be calibrated with a pH 4.01 buffer, if we buy alkaline ones with a buffer with a higher pH.
Each pH meter should be periodically calibrated to maintain measurement accuracy. The meter calibrations should be started with acidic solutions, ending with alkaline ones.
