A volumetric standard solution, titrated at 25°C to pH 8.6 against NIST* potassium acid phthalate.
Polybottle A volumetric Standard Solution, titrated at 25°C to pH 8.6 (phenolphthalein endpoint) against NIST Potassium Acid Phthalate. [1310-73-2] Caustic Soda Solution UN 1824
