Description :

2Bags/Lot PH4.00 and PH7.00 Buffer Powder For PH Test Meter Measure Calibration Solution

The contents will make up to 250ml each.
Just add water or distilled water.
For PH Meter Tester, used as the solution.

Directions for use : 
1. Completely emply the powder into a clean 250ml glass beaker.
2. Add 250ml of Deionized Water to the beaker.
3. Stir untillthe powder has completely dissolved.

Package includes :

1 x PH4.00 buffer powder
1 x PH7.00 buffer powder

Details pictures :









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