## percentage standard deviation, $$s_{\text{r}}\, (\%)$$, $$\sigma_{\text{r}}\, (\%)$$

https://doi.org/10.1351/goldbook.P04487
The value of the @[email protected], expressed in @[email protected] It can be calculated from the relative @[email protected] by multiplying by 100. Comment: It is recommended that the 'relative @[email protected]' be reported, rather than the 'percentage @[email protected]', in order to avoid confusion where results themselves are expressed as percentages. The term '@[email protected] of variation' in place of 'relative @[email protected]' is not recommended.
Source:
PAC, 1994, 66, 595. (Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)) on page 601 [Terms] [Paper]