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Vol. 27 No. 3
May-June 2005

The Project Place | Information about new, current, and complete IUPAC projects and related initiatives
See also www.iupac.org/projects

Comparable pH Measurements by Metrological Traceability

After the completion of “The Measurement of pH. Definitions, Standards, and Procedures (IUPAC Recommendations 2002),” Pure Appl. Chem. 74, 2169–2200 (2002), a workshop on the “Importance of Traceable pH Measurements in Science and Technology” was held at PTB/Braunschweig, Germany, in September 2001. The workshop, which was organized and promoted by members of this project’s task group, attracted a wide range of participants and revealed priorities and strong interest from the concerned community for continuing action. The meeting set the following objectives:

  • to implement traceability chains for pH values in routine measurements in order to achieve target uncertainties for specific applications
  • to develop educational and quality control tools for reference and testing laboratories under the observation of chemical and metrological principles
  • to improve the comparability and the assessment of pH values

The project, which has the support of the Analytical Chemistry Division, the Physical and Biophysical Division, the Chemistry and Environment Division, and the Committee on Chemistry and Industry, is scheduled to take three years and will be carried out in two parts pertaining to pH measurements in complex matrices:

  • Part I—pH Measurements in water quality monitoring and assessment
  • Part II—pH Measurements of clinical, biochemical, and environmental relevance

The task group consists of worldwide experts in the field, which aims to impact the scientific community due to both the relevance of the subject and the multiple scientific aspects involved in pH measurement and assessment.

For more information contact the Task Group Chairman Maria Filomena Camões <fcamoes@c.ul.pt>.

www.iupac.org/projects/2004/2004-005-2-500.html


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