Document Control Number: OQ-001
Version: 1.0
Effective Date: [Insert Date]
Reviewed By: [Insert Name]
Approval Date: [Insert Date]
Operational Qualification Protocol for pH Meter in QC Laboratory
Objective: To validate the operational performance of the pH Meter used for pH measurement in the QC Laboratory, ensuring it meets specified accuracy and calibration standards.
Scope: This protocol applies to the pH Meter utilized in the QC Laboratory for direct pH measurement of products, impacting product quality and compliance with regulatory standards.
Responsibilities:
- Validation Team: Execute the OQ protocol and document results.
- Quality Assurance: Review and approve the OQ protocol and results.
- Laboratory Personnel: Operate the pH Meter and assist in data collection.
Prerequisites:
- Completion of Installation Qualification (IQ).
- Availability of calibration standards and reference materials.
- Training of personnel on pH Meter operation.
Equipment Description:
The pH Meter is an electronic instrument used to measure the pH level of solutions. It provides direct readings of acidity or alkalinity and is critical for ensuring product quality in the QC Lab.
| Test ID | Procedure | Acceptance | Evidence |
|---|---|---|---|
| OQ-01 | Perform slope calibration using standard buffer solutions. | Slope must be between 95% and 105% of the theoretical value. | Calibration report and log. |
| OQ-02 | Verify accuracy against a certified reference standard. | Measurement must be within ±0.1 pH units of the reference. | Accuracy verification report. |
| OQ-03 | Audit trail review for calibration history. | All calibrations must be documented and traceable. | Audit trail log. |
Detailed Test Cases:
- Test Case OQ-01: Use three standard buffer solutions (pH 4.00, 7.00, 10.00) to calibrate the pH Meter. Document the slope and intercept values.
- Test Case OQ-02: Measure the pH of a certified reference solution and record the result. Compare to the expected value.
- Test Case OQ-03: Review the calibration history for the past year. Ensure all entries are complete and signed off.
Deviations: Any deviations from the acceptance criteria must be documented and investigated. A corrective action plan should be initiated for any significant discrepancies.
Approvals:
- Prepared By: ______________________
- Reviewed By: ______________________
- Approved By: ______________________
Data Integrity Checks:
- Ensure all calibration results are saved in a secure, validated electronic system.
- Implement user access controls to prevent unauthorized changes to calibration data.
- Regularly back up data to prevent loss.