This standard is applicable to biotite granite, rhyolite, granodiorite, quartz hornblend andesite, olivine basalt, gabbro, trachyandesite, nexia syenite, sandstone, shale and other silica with similar composition Determination of ferrous oxide in acid rocks. Measuring range: >0.5% ferrous oxide. This standard complies with the provisions of GB/T14505.
GB/T 14506.14-1993 history
2010GB/T 14506.14-2010 Methods for chemical analysis of silicate rocks.Part 14:Determination of ferrous oxide content