Project Details Global use of the C-NPU concept system for properties in toxicology

Project No.:
Start Date:
01 January 2002
End Date:
09 January 2007


To work out properties and units for global use of the C- NPU concept system for properties in toxicology based on the former C-NPU commission+IBk-s concepts and syntactic rules. The C-NPU commission, maintained as a joint IFCC- IUPAC activity for two decades, has as its main task to promote and maintain scientifically and conceptually sound ways of expressing the outcome of measurements and other examinations in laboratory medicine. The NPU coding scheme and vocabulary, based on the SI system, concepts theory and high-level international standards, is the main outcome and should be the cornerstone for expressing measurements within international communication standards.

> See Series on Properties and Units in the Clinical Laboratory Sciences


Representative substances of known importance in different areas of toxicology will be selected and their properties and units compiled in a data base according to the former C-NPU commission’s concepts and rules. The substances will be selected on the basis of their importance for human health. The project conforms to the IUPAC strategic goals 2 and 4, i.e., to promote standardized nomenclature, symbols, terminology and methodology in the chemical sciences as well as to facilitate the development of effective channels of communication in the international chemistry community.


During the first meeting (Hannover, 2002-08-3/4) a first draft by J.H. Duffus for properties in toxicology based on the general structure elaborated by C-NPU was discussed. The C-NPU concept system was proven to be appropriate for that purpose as demonstrated by a large number of typical examples.

A draft titled "Properties and Units in the Clinical Laboratory Sciences. Part XX. Properties and Units in Clinical and Environmental Human Toxicology" has been completed and submitted to PAC in Oct 2004; corresponding author: John Duffus

Project completed – A technical report – number XX in theseries – is published in PureAppl. Chem.79(1), 87-152, 2007.

<project announcement publishedin Chem.Int.24(6) 2002>