PH Buffer Powder for PH Test Meter Measure Calibration Solution 2 pcs 4.01 and 2 pcs 6.86 Calibration Point

pH Buffer for pH meter-Two pairs
$6.00
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*To be used to calibrate pH meter sold here at TFTestkits

-These pH buffer solution powders come in pre-measured individually sealed packets.
-Each one of the packets makes 250ml of pH buffer solution when mixed with distilled water. 
-This simplifies the process by making pH buffer solutions quickly and precisely without measuring out powder.