Objective:
This SOP outlines the procedure for establishing and implementing a retesting schedule for raw materials to ensure their continued compliance with quality standards.
Scope:
This SOP applies to all personnel involved in the handling, testing, and retesting of raw materials within the organization.
Responsibilities:
1. Quality Control Manager: Responsible for overseeing the implementation of the retesting schedule and ensuring compliance with this SOP.
2. Laboratory Analysts: Responsible for conducting tests on raw materials and initiating retesting procedures as per the schedule.
3. Procurement Team: Responsible for coordinating with suppliers to obtain necessary documentation and samples for retesting.
4. Production Team: Responsible for ensuring that only approved raw materials are used in manufacturing processes.
Procedure:
1. Identification of Raw Materials:
a. Maintain an updated inventory of all raw materials used in the production process.
b. Assign unique identification numbers or codes to each raw material for tracking purposes.
2. Establishment of Retesting Criteria:
a. Define the criteria for initiating retesting of raw materials based on factors such as shelf life, stability data, and historical performance.
b. Determine the frequency of retesting based on the stability of the raw material and its criticality to the manufacturing process.
3. Retesting Schedule:
a. Develop a retesting schedule specifying the intervals at which each raw material should be retested.
b. Consider factors such as the expiration date, storage conditions, and usage frequency when determining the retesting frequency.
c. Document the retesting schedule and ensure it is communicated to relevant personnel.
4. Retesting Procedure:
a. Prioritize raw materials for retesting based on their criticality to product quality and availability of resources.
b. Obtain samples of the raw materials to be retested from the warehouse or production area.
c. Conduct the appropriate tests according to the approved testing methods and procedures.
d. Compare the test results with established specifications and acceptance criteria.
e. Document all test results, including any deviations from specifications.
f. Take appropriate action based on the test results, such as approving the raw material for use, placing it on hold pending further investigation, or rejecting it outright.
5. Documentation and Recordkeeping:
a. Maintain accurate records of all retesting activities, including test results, dates, and any actions taken.
b. Store documentation in a secure and easily accessible location for future reference and audit purposes.
6. Communication:
a. Communicate the results of retesting to relevant stakeholders, including the Quality Control Manager, Procurement Team, and Production Team.
b. Take necessary actions based on the retesting results, such as updating inventory records, adjusting production schedules, or initiating supplier corrective actions.
Review and Revision:
This SOP shall be reviewed periodically by the Quality Control Manager to ensure its effectiveness and relevance. Any necessary revisions shall be made promptly and communicated to all relevant personnel.
Approval: