This standard defines a method for determination of the chelated trace element content and the chelated fraction of the trace elements (micronutrients) cobalt, copper, iron, manganese, and zinc in fertilizers. This method applies to fertilizers, covered by Directive 89/530/EEC, containing one or more of the trace elements cobalt, copper, iron, manganese, and zinc, chelated by one or more chelating agents of the group of the polyamino polycarboxylic acids.
Legislation related to this standard
Methods of sampling and analysis for fertilizers (Analysis metods for trace elements) - (Commission Directive amending Dir. 77/535/EEC)
90.93 Standard confirmed
Feb 5, 2021