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IMPORTANCE OF TEMPERATURE CONTROL IN HYDROMETER METHOD USED FOR MEASUREMENT OF SOIL TEXTURE

LONG Jiang;CHEN Rong;ZHANG Nian;Anhui Institute of Engineering Investigation and Survey;  
This paper introduced the principle and method of hydrometer used for measurement soil texture, randomly selected 6 groups of samples and divided them into 24 portions by quartering, and then made analysis and comparison of test results of suspension at different temperature. Compared with texture name at standard temperature of 20℃, texture names of 6 groups of samples did not change at 15℃; 3 of them changed at 23℃, and all 6 changed at 28℃. So, temperature control is very important to measurement of soil texture using hydrometer method.
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