832-394369 - Laboratory examination with laboratory assistant in an examination laboratory for food control, Freiburg, Baden-Wuerttemberg, Germany, Europe
832-394385 - Laboratory examination with laboratory apparatus and monitor, evaluation of a laboratory examination with chemist in the laboratory, Freiburg, Baden-Wuerttemberg, Germany, Europe
832-394395 - Result of a laboratory examination, chromatography in the hand of a chemist in the laboratory, food control examination, Freiburg, Baden-Wuerttemberg, Germany, Europe