This standard specifies the determination method of major and minor components in silicate rocks. This standard applies to silicate rocks including ultrabasic rocks, such as silica, aluminum oxide, total iron (expressed as Fe2O3), magnesium oxide, calcium oxide, sodium oxide, potassium oxide, chromium dioxide, The determination of manganese oxide, phosphorus pentoxide, barium oxide, chromium trioxide, nickel, copper, strontium and zirconium is also suitable for the determination of the above components in geological samples such as clay, soil and water system sediments.
GB/T 14506.28-1993 history
2010GB/T 14506.28-2010 Methods for chemical analysis of silicate rocks.Part 28:Determination of 16 major and minor elements content
1993GB/T 14506.28-1993 Silicate rocks. Determination of contents of major and minor elements. X-ray fluorescence spectrometric method