如何理解:ASTM D5599,“before preparing the standards,determine the purity of the oxygenate stocks and make corrections for the impurities found. Whenever possible,use stocks of at least 99.9% purity. Correct for the purity of the components for water content determined by Test method D1744."
如何理解:ASTM D5599,“before preparing the standards,determine the purity of the oxygenate stocks and make corrections for the impurities found. Whenever possible,use stocks of at least 99.9% purity. Correct for the purity of the components for water content determined by Test method D1744."