DS EN 16319:2013 Fertilizers - Determination Of Trace Elements - Determination Of Cadmium, Chromium, Lead And Nickel By Inductively Coupled Plasma-Atomic Emission Spectrometry (Icp-Aes) After Aqua Regia Dissolution Defines a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma atomic emission spectrometry (ICP-AES) after extraction with