What is ISO 23496 - Determination of pH value about?
ISO 23496 is an international standard on reference buffer solutions for the calibration of pH measuring equipment which covers determination of pH value.
ISO 23496 specifies reference buffer solutions for the calibration of pH measuring equipment.
Who is ISO 23496 - Determination of pH value for?
ISO 23496 on the determination of pH value is useful for: 
- pH measuring equipment manufacturers
- Reference buffer solutions manufacturers
Why should you use ISO 23496 - Determination of pH value?
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. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications. In nature, there are many systems that use buffering for pH regulation.
Reference buffer solutions are prepared using primary or secondary reference materials. The pH values of the reference buffer solutions are determined using the methods described in ISO 23496. The pH value of a reference buffer solution and the associated uncertainty of measurement are documented in a calibration certificate as the result of calibration. pH values of primary reference buffer solutions form the basis of pH measurements in practice and are generally determined by national metrology institutes.
ISO 23496 can help you facilitate a wide variety of chemical applications, this can help your organization in increasing efficiency.
