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For pH meter standardization. Sealed foil pouches of pH standardization buffers. pH is ± 0.02 at 25°C
Sealed pouches are easy to transport - no chance of spillage.
Just open the pouch and insert the electrode.
Foil pouches prevent contamination and air exposure.
Concentration:4.01 and 7.00 pH
Description :Buffer Solution
Platform :S
Quantity:20/pk (10 each)