PH 4.00 6.86 Calibration Buffer Powder 2pcs/lot
Lightweight, easy to carry.
Use noncontaminated or distilled water.
For each powder pack, mix with 250ml to make a solution.
Use for PH tester measure calibration solution.
PH Meter Buffer Solution Powder Set for Quick and Easy pH Calibration.
1 x 4.00PH buffer powder
1 x 6.86PH buffer powder
Type:4.01/ 6.86 /9.18 Calibration Point
Each Pack Volume: 250 ml.
Accuracy: ±0.01pH at 25°C
Item Type: PH Buffer Powder
Color: As picture shown
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