Applied research on the sampling precision in circulation of bulk grain
Xiaojiang Wu · Science and Technology of Cereals,oils and Foods · 2009
Taking corn and soybean as research material,precision theory was adopted to study sampling in circulation of bulk grain.Moisture was selected as reasonable quality parameter.A series of tests were performed in bulk grain railcars,belt conveyor and vessels to find out reasonable VPT value and VI value.The result indicated that it is relatively objective and operable to adopt precision 0.60%,minimum number of subsample 12,which is instructive for bulk grain sampling.