GB/T 5516-2011Inspection of grain and oils - Determination of viscosity of grain - Capillary viscometer method (English PDF)

3.1 Kinematic viscosity viscosity

Fluid under gravity flow measurement of internal friction. A ratio of dynamic viscosity to its density at the same temperature of the fluid representation.

Principle 4

Quantitative gauging water added to the sample at a specific temperature gelatinization gelatinization measured liquid flows by gravity through the capillary of time. Sample pasting

Kinematic viscosity and fluid flow through the capillary pasting proportional to the time.

6.1 constant temperature water bath

the water tank, electric control and temperature control devices, timers, the control and accuracy of temperature 50 °C ± 0.1 °C, timing

Minimum reading 0.1s.

6.2 Pasting apparatus

the pasting, heating mantle and temperature control, timing device components. Pasting consists pasting bottle (volume 500mL) and condensing units

Composition; heating mantle power 200W, volume 500mL; temperature control, timing system can be controlled so that the heating temperature was kept pasting pasting bottle micro-boiling,

Automatic alarm after 30min.

6.3 capillary viscometer

aperture 0.8mm, 1.0mm, 1.2mm, 1.5mm, with a viscometers viscosity constant calibration certificate. Should be selected together

Suitable aperture constant and viscosity to pasting the measuring liquid flow in the 30s ~ 60s time is appropriate, not more than 90s and less than 20s.

NOTE. capillary viscometer configuration diagram in Appendix A.