‘%RSD: Friend or Foe? When to use percent relative standard deviation—and how to do so correctly.’ By Lynn D. Torbeck in Pharmaceutical Technology, January 2010, Volume 34, Issue 1, pp. 37-38
In most analytical laboratories percent relative standard deviation
(%RSD) is used extensively as a measure of variability. It is important to understand how to use, and how not to use, this useful statistic. This article from Lynn Torbeck provides a good guide to proper use.