Calibration Documents: Micropipette 2-20 µL (CAL-0021)
| Asset ID | CAL-0021 |
|---|---|
| Equipment | Micropipette 2-20 µL |
| Equipment Type | Micropipette |
| Department | QC |
| Area/Location | Chemistry Lab |
| Process Use | Sample prep |
| Parameter | Volume |
| Units | µL |
| Range Min | 2 |
| Range Max | 20 |
| Acceptance Criteria | ±1% |
| Calibration Frequency (days) | 180 |
| Calibration Type | External |
| Traceability | ISO17025 |
Table of Contents
Calibration SOP
1. Purpose
The calibration of the Micropipette 2-20 µL is performed to ensure accurate volume measurements during sample preparation in the Chemistry Lab. This calibration controls risks associated with accuracy, patient safety, batch quality, and data integrity, thereby ensuring compliance with regulatory standards.
2. Scope
- Asset ID: CAL-0021
- Equipment Name/Type: Micropipette 2-20 µL / Micropipette
- Department/Area: QC / Chemistry Lab
- Process Use: Sample prep
- Parameter: Volume
- Range: 2 µL to 20 µL
- Units: µL
- Calibration Frequency: Every 180 days
3. Definitions
- Calibration: The process of verifying and adjusting the accuracy of a measurement instrument.
- Verification: Confirming that an instrument meets specified requirements.
- Adjustment: Modifying an instrument to bring it into compliance with specifications.
- As Found: The condition of the instrument prior to any adjustments.
- As Left: The condition of the instrument after adjustments have been made.
- OOT (Out of Tolerance): A condition where the instrument’s performance does not meet specified acceptance criteria.
- Drift: The gradual change in an instrument’s performance over time.
- Traceability: The ability to verify the history, location, or application of an item by means of documented recorded identification.
- Measurement Uncertainty: A parameter that characterizes the range of values within which the true value is asserted to lie.
- Intermediate Check: A verification process conducted between calibrations to ensure continued accuracy.
4. References
- Company Metrology SOP [TBD]
- ISO/IEC 17025 traceability via calibration certificates
- ALCOA+ principles
5. Responsibilities
- Technician/Metrology: Perform calibration and maintain records.
- QC/QA Reviewer: Review calibration records and ensure compliance.
- Owner Department: Ensure equipment is available and properly maintained.
- External Service Provider: Conduct external calibrations as required.
6. Safety & Preconditions
- Ensure environmental controls are in place (temperature, humidity).
- Allow equipment to warm up and stabilize as per manufacturer guidelines.
- Maintain cleanliness of the work area and equipment.
- Check leveling of the equipment before use.
- Verify power supply is stable and within specifications.
7. Standards & Tools
- Reference Standards Required: [TBD]
- Traceability Statement: ISO17025
- Certificate Validity Check: Ensure all reference standards are within validity period.
- Standard ID Placeholders: [TBD]
8. Calibration Strategy
Calibration will follow the As Found and As Left logic:
- Minimum number of points: 5 points including endpoints (2 µL and 20 µL) and midpoints.
- Replicate readings at each point: 3 repeats as a best practice.
9. Step-by-Step Procedure
- Preparation: Gather all necessary tools and reference standards.
- Stabilization: Allow the micropipette to stabilize in the calibration environment.
- As Found checks and data capture: Measure and record the volume at each calibration point.
- Adjustment rules: If OOT is found, follow adjustment procedures if allowed; otherwise, escalate to QA.
- As Left verification: Measure and record the volume again after any adjustments.
- Labeling + documentation completion: Ensure all records are completed and labeled appropriately.
Record raw observations contemporaneously to ensure data integrity (ALCOA+).
10. Acceptance Criteria & Calculations
The acceptance criteria for the calibration of the micropipette is ±1%. The error calculation formula is:
Error (%) = (Observed Value – True Value) / True Value × 100
Pass/Fail Logic: If the error falls within ±1%, the calibration passes; otherwise, it fails.
Rounding rule: [TBD]
11. Handling OOT / Failures
- Immediate containment: Tag equipment and stop use.
- Notification & deviation initiation: Notify QA and initiate deviation report.
- Impact assessment trigger: Define impact window and review of affected results/batches.
- Recalibration after repair/adjustment: Ensure recalibration is performed before returning to service.
- QA disposition placeholders: [TBD]
12. Records & Retention
- Logbook entries: Document all calibration activities.
- Calibration report/certificate filing: Maintain records for audit purposes.
- e-Records if applicable: [TBD]
- Label content requirements: Include calibrated date, due date, by whom, and status.
13. Annexures
Annexure A: Calibration Data Sheet
| Test Points | Reference | Observed | Error | Acceptance | Pass/Fail | As Found | As Left |
|---|---|---|---|---|---|---|---|
| [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
Annexure B: Quick Checklist
- Environmental controls verified
- Equipment warmed up
- Cleanliness checked
- Leveling confirmed
- Power supply stable
Annexure C: Example Label Text
Calibration Date: [TBD] | Due Date: [TBD] | Calibrated By: [TBD] | Status: [TBD]
Calibration Protocol
Calibration Protocol
| Protocol ID | Asset ID | Equipment Name | Equipment Type | Dept | Area | Process Use | Parameter | Units | Range | Acceptance Criteria | Frequency | Calibration Type | Traceability |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [TBD] | CAL-0021 | Micropipette 2-20 µL | Micropipette | QC | Chemistry Lab | Sample prep | Volume | µL | 2 – 20 | ±1% | 180 days | External | ISO17025 |
Environmental Conditions
Temperature: [TBD]
Relative Humidity: [TBD]
Vibration: [TBD]
Drafts: [TBD]
Test Point Selection
Test points will be selected based on the specified range of 2 µL to 20 µL. The following points will be used:
- 2 µL (Minimum)
- 5 µL (25%)
- 10 µL (50%)
- 15 µL (75%)
- 20 µL (Maximum)
Results Table
| Test Point | Ref Value | Observed (As Found) | Error | Limit | Pass/Fail | Observed (As Left) | Error | Pass/Fail |
|---|---|---|---|---|---|---|---|---|
| 2 µL | [TBD] | [TBD] | [TBD] | ±0.02 µL | [TBD] | [TBD] | [TBD] | [TBD] |
| 5 µL | [TBD] | [TBD] | [TBD] | ±0.05 µL | [TBD] | [TBD] | [TBD] | [TBD] |
| 10 µL | [TBD] | [TBD] | [TBD] | ±0.1 µL | [TBD] | [TBD] | [TBD] | [TBD] |
| 15 µL | [TBD] | [TBD] | [TBD] | ±0.15 µL | [TBD] | [TBD] | [TBD] | [TBD] |
| 20 µL | [TBD] | [TBD] | [TBD] | ±0.2 µL | [TBD] | [TBD] | [TBD] | [TBD] |
Stepwise Instructions
- Preparation: Ensure the micropipette is clean and free from any contaminants.
- Stabilization: Allow the micropipette to stabilize at room temperature for at least 30 minutes.
- Performing Readings:
- Calibrate using the selected test points.
- Take three replicates for each test point.
- Calculating Error: Calculate the error for each test point using the formula:
Error = (Observed – Ref Value) / Ref Value * 100%. - Evaluation: Compare the calculated error against the acceptance criteria of ±1%.
- Documentation: Record all observations in the results table and ensure data integrity (ALCOA+).
Deviation Instruction for OOT
If any observed value falls outside the acceptance criteria:
- Stop use of the micropipette.
- Notify the supervisor immediately.
- Open a deviation report.
- Quarantine impacted results window: [TBD].
- Await QA decision on further actions.
Approvals
| Prepared By | Reviewed By | Approved By |
|---|---|---|
| ___________________ / Date: ___________ | ___________________ / Date: ___________ | ___________________ / Date: ___________ |
Calibration Checklist
| Asset ID | Equipment | Dept | Area | Parameter | Range | Acceptance | Frequency | Traceability |
|---|---|---|---|---|---|---|---|---|
| CAL-0021 | Micropipette 2-20 µL | QC | Chemistry Lab | Volume | 2 – 20 µL | ±1% | 180 days | ISO17025 |
Pre-calibration
- [ ] Verify environmental conditions are within specified limits
- [ ] Allow micropipette to warm up as per SOP
- [ ] Clean the micropipette according to cleaning procedures
- [ ] Level the micropipette if applicable
- [ ] Check validity of reference standards
- [ ] Ensure calibration logbook is ready for documentation
As Found Execution
- [ ] Set initial setpoints for calibration
- [ ] Perform repeat measurements as per protocol
- [ ] Record raw data accurately
- [ ] Perform necessary calculations for results
OOT Immediate Actions
- [ ] Tag out the micropipette
- [ ] Stop use of the micropipette immediately
- [ ] Notify QA and relevant personnel
- [ ] Document deviation from acceptance criteria
- [ ] Trigger impact review as per SOP
As Left Verification
- [ ] Conduct post-adjustment checks
- [ ] Confirm all measurements are within specified limits
Documentation & Closure
- [ ] Update equipment label with calibration details
- [ ] Attach calibration certificate to logbook
- [ ] Obtain reviewer sign-off
- [ ] Update next due date for calibration
Data Integrity (ALCOA+): Ensure all data recorded is Accurate, Legible, Contemporaneous, Original, and Attributable.
Deviation Impact Assessment
| Event Summary | Details |
|---|---|
| Asset | Micropipette 2-20 µL |
| Date | [TBD] |
| Discovered By | [TBD] |
| Document References | [TBD] |
| As Found Results Summary | [TBD] |
Immediate Containment Checklist
- Stop use of the equipment
- Label/tag the equipment as out of service
- Segregate impacted work
Define Impact Window
| Last Known In-Tolerance Date | Discovery Date |
|---|---|
| [TBD] | [TBD] |
Product/Batch/Test Impact Review
| Batch/Study/Report ID | Results Potentially Impacted | Re-test/Re-weigh Decision |
|---|---|---|
| [TBD] | [TBD] | [TBD] |
Data Integrity Review Prompts (ALCOA+)
- Attributable: [TBD]
- Legible: [TBD]
- Contemporaneous: [TBD]
- Original: [TBD]
- Accurate: [TBD]
- Complete: [TBD]
- Consistent: [TBD]
- Enduring: [TBD]
- Available: [TBD]
Risk Assessment
| Severity | Probability | Detectability | Rationale | Overall Risk |
|---|---|---|---|---|
| [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
Investigation Summary
Root Cause: [TBD]
CAPA Plan
| Action | Owner | Due Date | Effectiveness Check |
|---|---|---|---|
| [TBD] | [TBD] | [TBD] | [TBD] |
QA Disposition
Release/Hold/Retest/Recall Triggers: [TBD]
Calibration Certificate
Certificate No: [TBD]
Date: [TBD]
Next Due Date: [TBD]
Asset Details
| Asset ID | Equipment Name | Equipment Type | Dept | Area | Make/Model | Serial No | Location | Parameter/Range/Units | Acceptance Criteria |
|---|---|---|---|---|---|---|---|---|---|
| CAL-0021 | Micropipette 2-20 µL | Micropipette | QC | Chemistry Lab | [TBD] | [TBD] | [TBD] | Volume (2-20 µL) | ±1% |
Conditions
Environment: [TBD]
Reference Standards
| Standard Name/ID | Certificate No | Due Date | Traceability Statement |
|---|---|---|---|
| [TBD] | [TBD] | [TBD] | ISO17025 |
Results
As Found Results
| Test Point | Measured Value (µL) | Pass/Fail |
|---|---|---|
| 2 µL | [TBD] | [TBD] |
| 5 µL | [TBD] | [TBD] |
| 10 µL | [TBD] | [TBD] |
| 15 µL | [TBD] | [TBD] |
| 20 µL | [TBD] | [TBD] |
As Left Results
| Test Point | Measured Value (µL) | Pass/Fail |
|---|---|---|
| 2 µL | [TBD] | [TBD] |
| 5 µL | [TBD] | [TBD] |
| 10 µL | [TBD] | [TBD] |
| 15 µL | [TBD] | [TBD] |
| 20 µL | [TBD] | [TBD] |
Measurement Uncertainty Statement: [TBD]
Statement of Conformity: [Pass/Fail overall]
Remarks: [TBD]
Signatures
Performed by: ____________________ Date: ___________
Checked by: ____________________ Date: ___________
Approved by: ____________________ Date: ___________