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  • PID: si:nonsiallowedunit:bel
  • Definition: Expresses the ratio of two values of a power or root-power quantity on a logarithmic scale.
  • Source: SI Brochure 9th Edition, page 145
  • Status: Valid
  • Valid: 2019-05-20 -
  • Note: In using this unit it is important that the nature of the quantity be specified and that any reference value used be specified.
  • Related Definitions
    • hasAllowedNonSIUnitSymbol -> B