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粮食水分在16%(含16%)以上时,按照现行国家标准,要采用两次烘干测定法,进行水分含量测定(GB/T20264-2006),但这种烘干测定法测定时间较长。为了解决在粮食烘干降水期间,高水分玉米(水分高于≥16%)水分含量测定时间较长,检验结果不能更及时指导生产的问题,我们对如何缩短高水分玉米水分含量测定时间,进行了检验方法的研究探索。对试验样品采用不同烘干温度,不同烘干时间进行定测,对多组玉米水分的测定结果进行比对,运用统计学理论对最佳两组数据进行数据分析,经过不断试验、研究、总结、改进,初步确定了一种快速测定高水分玉米水分的方法,即《180℃高温定时烘干法》。这种方法大大缩短了高水分玉米水分测定时间。
When the moisture content of grain is above 16% (including 16%), according to the current national standard, the determination of the moisture content shall be carried out twice by the drying determination method (GB / T20264-2006), but the determination of the drying determination method takes a long time . In order to solve the problem that the measurement of moisture content of high-moisture corn (with water content higher than 16%) during grain drying and precipitation is relatively long and the test results can not guide the production more promptly, we conducted a study on how to shorten the measurement time of moisture content of high-moisture corn Study and Exploration of Test Methods. The test samples were dried at different temperatures, different drying time for the determination of the number of groups of corn moisture determination results were compared using statistical theory of the best two sets of data for data analysis, after continuous testing, research, summary , Improved, initially identified a rapid determination of high moisture corn water method, that is, “180 ℃ high temperature drying time.” This method greatly reduces the high moisture corn moisture measurement time.