... and foreign, at the same time, increased new simple characteristic bulk density and temperature in reference and improved the function and ... testing and meterage when grain purchase and storage, may also used for specialized teaching in colleges and institutes.Technical Note:1 ... range)4,Test time;≤10s5,Repeatability error;≤0.2%6,Bulk density testing error; ±5g7,Environment temperatures;0-40°C8, ...