Published online by Cambridge University Press: 06 March 2019
Various industries throughout the world require Standard methods for trade of products and referee analysis. Over the past 20-30 years, a number of wet-chemical Standard methods have been developed and are in use. Due to the large number of elements required for analysis in most products, XRF methods have become attractive as techniques to handle many elements simultaneously with a simple single sample preparation. Despite XRF being in daily use in many industries as an ‘in-house’ method, there are relatively few National or International Standard XRF methods.