“水浸悬浮法”快速检测粮食含水率的应用

“水浸悬浮法”快速测定粮食水分是利用“阿基米德定律”的原理,将样品完全浸入水中称量出干物质在水中质量,换算出于物质百分率,从而检测出粮食含水率.测量过程中称取一定量的试样装入恒质测量皿中,注水充分浸泡样品并排净空气,将密闭的测量皿完全浸入水中,称量其质量.根据“阿基米德定律”,样品中的水分质量与其在水中所受的浮力相等,在水中称量时水就失重为“0”,称量所得质量为样品干物质和测量皿的质量.然后通过计算即可得到试样的含水率.“水浸悬浮法”改变了传统以空气为介质的测定模式,填补了水分测定方法的技术空白.根据“水浸悬浮法”开发出JFSK - 100A型粮食水分快速测定仪,具有快速、准确、节能、环保等特点,为粮食的收购、销售、调运、存储、加工等各环节提供了科学准确的依据.2010年10月25日该方法及仪器被列入国家粮食行业标准.

Application of Waterlog Suspend Method for Fast Detecting and Analyzing Grain Moisture Content

Waterlog Suspension Method for fast detecting grain moisture is a method based on the Achimedes Law Principle.During the experiment,dry samples were drown into water thoroughly for measuring the,mass of the dry samples in water rapidly and figuring out the percentage of the same,and at last the detection results of moisture of the grain was obtained.During the measuring process,firstly a certain amount of tested sample were weighed and put into a constant-mass measuring container.Secondly,the sample was tot...