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 vanadium in salt rocks. Measuring range: polarographic method, 10-800μg/g vanadium. Photometric method, 10~2000μg/g vanadium. When different methods are used to analyze disputes, the indirect polarographic method is used as the arbitration method among the two polarographic methods. This standard complies with the provisions of GB/T14505.
GB/T 14506.22-1993 history
2010GB/T 14506.22-2010 Methods for chemical analysis of silicate rocks.Part 22:Determination of vanadium content