blind duplicates/replicates 咋理解（分析）？ astm d6378-08 石油产品、烃类及烃类-含氧化合物混合物的蒸气压 测定法 x3.2 samples x3.2.1 participants in the study analyzed randomly ordered sample sets comprised of blind duplicates and replicates from the same container of 20 types of hydrocarbons and hydrocarbon-oxygenate blends contained in 250-ml and 1-l clear glass containers (that is, 20 samples x 2 duplicates x 2 bottle sizes x 2 replicates/bottle = 160 analyses/data set). the twenty sample types included 6 conventional gasolines (with and without ethanol added), 5 reformulated gasolines (rfg) containing either mtbe or ethanol, 6 carb gasolines (2 without oxygenates, 2 with mtbe, and 2 with ethanol), 1 avgas, 1 jp4, and 1 condensate. the total vapor pressure of the samples ranged from approximately 22 to 110 kpa (3.2 to 16.0 psi). 查看更多
第1天
关注盖德视界
添加小助手
