1, principle Extend the measurement time of ink stickiness and observe the change of ink viscosity value, expressed as a number. 2. Material (1) Cotton yarn. (2) Scrub solvent NY-200 solvent oil. 3, the instrument (1) Ink Stick Model MODEL RGV-3 (Japan). (2) The stopwatch division value is 0.2s. 4, test conditions The test shall be carried out at a temperature of (25 ± 1) °C and a relative humidity of 65 ± 5. 5, inspection steps (1) Turn on the instrument power, adjust the water temperature of the thermostat to 32 °C, and keep it at a constant temperature. (2) Place the instrument shift lever in the low speed position and press the synthetic rubber roller and the uniform rubber roller on the metal roller. (3) Start the instrument. After 15 minutes of operation, place the cursor on the scale “0â€. Adjust the instrument so that the scale is in equilibrium. (4) After the adjusted sample ink is poured into the metal ink absorber, the sample ink is extruded from the metal and the ink and evenly coated on the synthetic rubber roller. Turn the motor by hand so that the ink is uniformly applied to the metal roller and the roller. (5) start the instrument, evenly ink. At 30s, remove the brake, move the travel bar to balance the scale, and read the sticky data at 1 minute. The instrument continues to operate and the viscosity at the 15th minute is recorded. 6, test results The difference between the viscosity at 15 min and the viscosity at 1 min is the viscous increase. This is one of our popular new ergonomic Two Legs Height Adjustable Desk.
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