Document Control
Document ID: DQ-AB-001
Version: 1.0
Effective Date: YYYY-MM-DD
Review Date: YYYY-MM-DD
Prepared by: [Name]
Approved by: [Name]
Design Qualification Protocol for Analytical Balance in QC Laboratory
Objective: To ensure that the Analytical Balance used in the QC Laboratory meets all specified requirements for accurate weighing of samples and standards.
Scope: This protocol applies to the installation and operational qualification of the Analytical Balance in the QC Lab, focusing on its critical parameters.
Responsibilities:
- Validation Team: Prepare and execute the DQ protocol.
- Quality Assurance: Review and approve the protocol.
- Laboratory Personnel: Operate the Analytical Balance as per SOP.
Prerequisites:
Ensure that the Analytical Balance is installed in a suitable environment as per manufacturer’s specifications.
Equipment Description:
The Analytical Balance is designed for precise weighing of samples and standards in a laboratory setting. It features high accuracy, repeatability, and an audit trail function.
| Test ID | Procedure | Acceptance Criteria | Evidence |
|---|---|---|---|
| DQ-01 | Verify accuracy using calibrated weights. | Within ±0.001g of true weight. | Calibration certificate and log. |
| DQ-02 | Check repeatability with multiple weighings. | Standard deviation ≤ 0.002g. | Weighing log. |
| DQ-03 | Assess linearity across the range. | Deviation within ±0.002g across the range. | Linearity test report. |
| DQ-04 | Monitor drift over time. | No drift > 0.001g over 24 hours. | Drift log. |
| DQ-05 | Audit trail verification. | All entries logged and accessible. | Audit trail report. |
Detailed Test Cases
Test Case DQ-01: Accuracy Verification
Procedure: Use calibrated weights to test the accuracy of the balance. Record the measurements and compare to the known weights.
Acceptance Criteria: The balance must show a measurement within ±0.001g of the true weight.
Evidence: Calibration certificate and weighing log must be attached.
Test Case DQ-02: Repeatability Check
Procedure: Weigh the same sample multiple times and record the results.
Acceptance Criteria: The standard deviation of the measurements must be ≤ 0.002g.
Evidence: Weighing log must be attached for review.
Test Case DQ-03: Linearity Assessment
Procedure: Weigh a series of weights across the balance’s range and record the results.
Acceptance Criteria: Deviation must be within ±0.002g across the range.
Evidence: Linearity test report must be included.
Test Case DQ-04: Drift Monitoring
Procedure: Weigh a standard weight at intervals over 24 hours to check for drift.
Acceptance Criteria: No drift greater than 0.001g is allowed.
Evidence: Drift log must be maintained and submitted.
Test Case DQ-05: Audit Trail Verification
Procedure: Review the balance’s audit trail for accuracy and completeness.
Acceptance Criteria: All entries must be logged and accessible for review.
Evidence: Audit trail report must be submitted.
Deviations
Any deviations from the acceptance criteria must be documented and justified. A corrective action plan must be established to address any issues identified during testing.
Approvals
Prepared by: ______________________ Date: ____________
Reviewed by: ______________________ Date: ____________
Approved by: ______________________ Date: ____________