1. Ensure that the environment meets the requirements;

2. Ensure that the auxiliary equipment provided by the laboratory meets the requirements of laboratory balances, flasks, test water, etc.;

3. Provide accurate and complete calibration parameters;

4. Monitor calibration activities, obtain calibration results in a timely manner, and determine whether the predetermined requirements are met in a timely manner;

5. Keep the original calibration files, such as spectrum diagrams;

6. Comply with confidentiality requirements.