BS ISO 23497:2019
Determination of pH value. Technical buffer solutions for the calibration of technical measuring installations

Standard No.

BS ISO 23497:2019

Release Date

2019

Published By

British Standards Institution (BSI)

Latest

BS ISO 23497:2019

Scope

  What is ISO 23497 – technical buffer solution pH about?    A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa. Its pH changes very little when a small amount of strong acid or base is added to it. ISO 23497 specifies requirements for technical buffer solutions.    These buffer solutions are preferably used for the calibration and adjustment of technical pH measuring equipment as well as pH measuring installations in laboratories. Measuring methods are given to determine pH values and buffer capacities of such buffer solutions based on pH reference buffer solutions in accordance with ISO 23496. BS ISO 23497:2019 history

• 2019 BS ISO 23497:2019 Determination of pH value. Technical buffer solutions for the calibration of technical measuring installations