International Standards of Aluminum
National standards widely used traditional chemical analysis methods to analyze the composition of the alumina grade, cumbersome method, according to the analysis period, in strict accordance with GB / T15000.1-15000.5-1994 and YS / T409-1998 standards, after sample preparation, mixed sample, the value, uniformity test, normal test, stability research and production complex analysis using the assessment process, and then evaluated by the evaluation committee agreed, reasonable sample components designed to meet the YZ / T272-1998 "alumina" Product Standard chemical composition requirements, can be considered the State of qualified products.
Widely used international standard X- ray fluorescence analysis, the use of a standard sample preparation requires the use of high-purity oxides, preparation procedures are complicated and the analysis of more ingredients in strict accordance with the alumina sample International Organization for Standardization (ISO), JB / T4281-1999 standard and ISO5182-1999 (E) international standards, through sample preparation, sample mix, valuation, uniformity test, normal test, stability research, production analysis using complex evaluation process, in line with X- ray fluorescence analysis standards; good uniformity and stability, setting accurate and reliable results.
