Methods for chemical analysis of zinc concentrates—Part 21:Determination of thallium content—Inductively coupled plasma mass spectrometry and inductively coupled plasma-atomic emission spectrometry
Methods for chemical analysis of lead and zinc bulk concentrates—Part 12:Determination of thallium content—Inductively coupled plasma mass spectrometry and inductively coupled plasma atomic emission spectrometry
Methods for chemical analysis of crude copper and cobalt raw materials-Part 3:Determination of sulfur content-High frequency combustion with infrared spectrometry