DIN EN 15944:2011-02 液體石油產(chǎn)品.鎳和釩含量的測(cè)定.電感耦合等離子體發(fā)射光譜法(ICP OES)
Liquid petroleum products - Determination of nickel and vanadium content - Inductively coupled plasma optical emission spectrometry method (ICP OES); German version EN 15944:2010