Quality Control the Testing Data of Solid Chemical Salt Samples

Solid chemical salt is the unique mineral source in Western China. However, there is no standard method to analyse this kind of sample in the laboratory due to the lack of national standard material for solid chemical salt. Therefore, testing quality management is critical for the analysis data of solid chemical salt. Combining the specification of testing quality management for geological laboratories (DZ/T 0130—2006), methods of quality control of data analysis in chloride and sulfate kinds of solid chemical salt samples were introduced. These methods include acquiring the components of salts in the mineral area during sample preparation, providing testing data for water content, the right order and principle for all kinds of components during conversion from the ion mass fractions to compound mass fractions, preliminary study analysis mass for sample by following principle of equilibrium between cation and anion, and quality testing of the analysis data by the relationships among ions, standard recovery and duplications. In this paper, we briefly propose quality management methods for some special solid chemical salts such as NaCl, KCl, high pure MaCl₂ and LiCl, in order to guarantee the credibility and accuracy for data analysis in the laboratory.