pH Buffer Solutions

This listing contains buffer solutions for calibrating the pH measurement chain. For any given buffer solution the label shows a temperature table. Tables are also separately available for download. The buffer solutions are classified into groups:

• nominal 20 °C calibration
• nominal 25 °C calibration
• for referencing applications:
  Use as calibration standards for precision measurements as a reference for other buffer solutions (for comparative measurements). These buffer solutions are not defined by DIN for use in the routine calibration for pH meters and have a lower buffer capacity (and are therefore more susceptible to interference).
• for low temperature applications:
  Buffer solutions and electrolytes for pH measurements at very low temperatures of lower than -10 °C, e. g. in the production of pharmaceutical products.
• for sterile applications:
  Sterilized buffer solutions and electrolytes are available on request.

Electrolytes for the reference electrode or combination electrodes, see Electrolytes.
Cleaning and regeneration solutions, see Electrode Care.