Symbols, abbreviations and units

Autor: W. T. Ulmer, R. Peslin, P. J. Sterk, J.-C. Yernault, J. E. Cotes, Josep Roca, P. H. Quanjer, Ole F. Pedersen, Leonardo M. Fabbri, G. J. Tammeling, H. Matthys
Rok vydání: 1993
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1399-3003
0903-1936
DOI: 10.1183/09041950.085s1693
Popis: The recommendations in this 1993 update do not differ materially from those in the previous report of the European Community for Steel and Coal [1]. However, the list of abbreviations has been extended with respect to the items covered; in addition the European Community has expanded since the previous report, and the report has accordingly been updated to cover the languages spoken in each of the member states. ### 2.1 Symbols for quantities Symbols are used to designate specific quantities, including basic quantities ( e.g. volume, time, pressure, amount of chemical substance) and derived quantities ( e.g. volume by unit time). Letters from the Latin or Greek alphabet are commonly employed as symbols, either roman type as in the USA or italics as recommended by the European Society for Clinical Respiratory Physiology [2] and adopted in the 1983 report of the ECSC. As the number of letters available is limited, inevitably one symbol may be used to designate more than one quantity ( e.g. concentration of chemical substance and compliance). Symbols for …
Databáze: OpenAIRE