1, the accuracy of the instrument to determine the micronaire value mainly depends on whether the calibration valve is qualified.
2. The seal between the calibration valve of the instrument and the sample tube is sealed by the rubber belt in the middle of the calibration valve.
3. The rubber band often rubs against the sample tube for a long time, and the rubber is aging. After the air permeability is corrected by the correction valve, the accuracy of the instrument test results is difficult to guarantee.