IEVref: 806-12-26 ID: Language: en Status: Standard Term: deviation from rated speed (tape speed or speed of rotation) Synonym1: Synonym2: Synonym3: Symbol: Definition: the relative deviation of the mean measured speed (tape speed or speed of rotation) with respect to the rated speed (tape speed or speed of rotation) NOTE – The deviation is expressed in percentage, regarded either as positive (+) when the measured speed is higher than the rated speed, or as negative (-) when it is lower. It is given by:$\frac{\text{mean}\text{\hspace{0.17em}}\text{measured}\text{\hspace{0.17em}}\text{speed}-\text{rated}\text{\hspace{0.17em}}\text{speed}}{\text{rated}\text{\hspace{0.17em}}\text{speed}}×100\text{\hspace{0.17em}}%$ Publication date: 1996-12 Source: Replaces: Internal notes: 2016-08-03: In addition to replacing math img by MathML, equation transferred to the note since incorrectly placed in the definition. JGO 2017-06-02: Cleanup - Remove Attached Image 806-12-26en.gif CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: