Review on classification of geological reference materials in China
In this paper,the classification system of Chinese reference materials was briefly introduced,and the classification of geological reference materials,especially Chinese geological reference materials,was discussed.The 7th type of geological reference materials in the existing Chinese reference material classifi-cation and other types of geological material reference materials commonly used for geological analysis in China were mainly classified and evaluated,including the reference materials for bulk analysis,ultrafine geological reference materials,chemical phase and speciation analysis reference materials,micro-area in-si-tu analysis reference materials,isotope and geochronology analysis reference materials,organic pollutant analysis and environmental radioactivity measurement reference materials.As the most diverse and the lar-gest number of reference materials for bulk analysis,they were classified and reviewed according to the fields of rocks,sediments,soils,ores,single minerals,precious metals,energy minerals,building materi-als,nuclear geological materials and environmental chemistry.The main contents included the number of reference materials,the number of samples and the number of property data.Finally,the classification of reference materials of complex geological materials and other existing problems in the development of geo-logical reference materials in China were discussed,and relevant suggestions were put forward.Total 82 references were cited in this paper.
geologic analysisgeological reference materialnumber of property valueclassificationChina