1987VDI 2268 Blatt 1-1987 Chemical analysis of particulate matter; determination of Ba, Be, Cd, Co, Cr, Cu, Ni, Pb, Sr, V, Zn in particulate emissions by atomic spectrometric methods
1984VDI 2268 Blatt 1-1984 Determination of suspended particulates; determination of Ba@ Be@ Cd@ Co@ Cr@ Cu@ Ni@ Pb@ Sr@ V@ Zn in dust emissions by atomic spectrometric methods