제품 필터
Potassium hydrogen phthalate, Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur
Potassium hydrogen phthalate, for analysis EMSURE® Reag. Ph Eur
Potassium hydrogen phthalate, certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.005 (25°C) Certipur®