Handle the weights with care.

2. Before use, clean the surface dust of the weight with a soft brush or rag.

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

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

5. Do not touch the weights with bare hands. Use tools to remove weights when in use.

6. Prior to calibrating the balance, the weights must be maintained at a constant temperature to achieve the laboratory's temperature conditions.

7. All sets of weights must not be mixed with other weights.

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

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

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

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