GB/T 33686-2017: Translated English of Chinese Standard (GBT 33686-2017, GB/T33686-2017, GBT33686-2017): General Rules for Analytical and Testing Methods of Coal Mine Water
https://www.chinesestandard.net, 24 Sep 2016 - 10 halaman
This Standard specifies the general rules, sample, determination, solutions and their concentration, expression of results, accuracy of method, test record and test report of analysis and testing of coal mine water. This Standard applies to the analysis and testing of coal mine water.
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accordance with Formula accuracy of method amount-of-substance analysis Analytical and Testing analytical methods analytical standard Application arithmetic mean Blank test calculated in accordance coal mine water concentration of substance equal to 1.2r expression of results following content four measured values fraction of substance identification identifier of report laboratory legal units limit and reproducibility mass concentration mass of solute mass of substance Method GB/T method of coal page number ratio reagents Record and Test referenced documents repeatability limit report approval reproducibility critical difference result of determination significant digits solvent specified format specified in GB/T SR—the standard deviation standard of coal standard or method standard substance Storage of water substance B divided symbols and legal take the arithmetic test date Test report test results testing method testing of coal three measured values total pages Units and Symbols units of measurement usually expressed volume of mixture volumetric Water samples taken