BS EN ISO 80000‑8:2020 pdf download.Quantities and units.
1 Scope
This document gives names, symbols, definitions and units for quantities of acoustics. Where
appropriate, conversion factors are also given.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Names, symbols, definitions and units for quantities used in acoustics are given in Table 1.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platforni: available at https://wwwiso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
sound particle
material element
smallest element of the medium that represents the medium’s mean density
LSOURCE: Iso 18405:2017, 3.1.1.5, modified - Note 1 to entry deleted]
4 Remark on the use of the symbols lb and Ig
In accordance with ISO 80000-2, the abbreviations lb and lg are used to indicate logarithms to the base 2 (log2) and base 10 (logio), respectively.BS EN ISO 80000‑8 pdf download.