YS/T 37.5-2018 Chemical analysis method of high-purity germanium dioxide Determination of iron content by graphite furnace atomic absorption spectrometry (English Version)
2018YS/T 37.4-2018 High-purity germanium dioxide chemical analysis method Determination of magnesium, aluminum, cobalt, nickel, copper, zinc, indium, lead, calcium, iron and arsenic by inductively coupled plasma mass spectrometry
2007YS/T 37.4-2007 High pure germanium dioxide. Determination of magnesium, aluminium, cobalt, nickel, copper, zinc, indium, lead, calcium, iron and arsenic content. Inductively coupled plasma mass spectrometric method
1992YS/T 37.4-1992 Chemical analysis method of high-purity germanium dioxide Chemical spectrometry Determination of iron, magnesium, lead, nickel, aluminum, calcium, copper, indium and zinc