How to use alcohol thermometer
1. Calibration should be performed before use (you can use the standard liquid temperature multi-branch comparison method for calibration or use a more advanced thermometer for calibration).
2. It is not allowed to use the measured value whose temperature exceeds the maximum scale value of this kind of thermometer. (The measurement temperature should not exceed 78°C)
3. The thermometer has thermal inertia and should be read after the thermometer reaches a stable state. The reading should be taken in the direction of the highest tangent of the temperature convex meniscus, looking straight.
4. Avoid violent vibration during use, and the temperature should not change drastically.