This standard is applicable to biotite granite, rhyolite, granodiorite, quartz hornblende andesite, olivine basalt, trachyandesite, nexia syenite, sandstone, shale and other silicate rocks with similar composition Determination of lead. It is not suitable for gabbro with high iron content and high titanium content. Measuring range: flame atomic absorption spectrophotometry, 5-500μg/g lead. Hydrochloric acid-tartaric acid-potassium iodide bottom solution polarography method, 10~250μg/g lead. This standard complies with the provisions of GB/T14505.
GB/T 14506.19-1993 history
2010GB/T 14506.19-2010 Methods for chemical analysis of silicate rocks.Part 19:Determination of lead content