Handle the weights with care.

2. Before use, clean the scale surface of the weights with a soft brush or cloth to remove dust.

3. Check the weights inside the box before and after use to prevent loss.

4. Weights should be stored properly and not placed in damp and dusty environments.

5. Do not touch the weights with bare hands. Use a tool to remove the weights when handling them.

6. Before calibration, the weights should be maintained at a constant temperature to achieve the laboratory's temperature conditions.

7. Do not mix different sets of weights.

Avoid using thick acids, alkalis, and oils during use.

9. After use, clean the weights with alcohol and let them air dry naturally before storing them in their original packaging box for future use.

10. Weights should be calibrated regularly based on usage frequency, and calibration records should be kept.

11. If there are issues with the weight performance, the weight should be immediately sent to a testing facility for inspection.