Calibration Documents: Micropipette 20-200 µL (CAL-0022)
| Asset ID | CAL-0022 |
|---|---|
| Equipment | Micropipette 20-200 µL |
| Equipment Type | Micropipette |
| Department | QC |
| Area/Location | Chemistry Lab |
| Process Use | Sample prep |
| Parameter | Volume |
| Units | µL |
| Range Min | 20 |
| Range Max | 200 |
| Acceptance Criteria | ±1% |
| Calibration Frequency (days) | 180 |
| Calibration Type | External |
| Traceability | ISO17025 |
Table of Contents
Calibration SOP
1. Purpose
The calibration of the Micropipette 20-200 µL is performed to ensure accurate volume measurements during sample preparation in the QC department. This calibration controls risks related to accuracy, patient safety, batch quality, and data integrity, thereby ensuring compliance with regulatory standards.
2. Scope
- Asset ID: CAL-0022
- Equipment Name/Type: Micropipette 20-200 µL / Micropipette
- Department/Area: QC / Chemistry Lab
- Process Use: Sample prep
- Parameter: Volume
- Range: 20 – 200 µL
- Units: µL
- Calibration Frequency: 180 days
3. Definitions
- Calibration: The process of verifying and adjusting the accuracy of an instrument against a standard.
- Verification: The confirmation that an instrument meets specified requirements.
- Adjustment: The act of altering an instrument to bring it into compliance with standards.
- 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 measurement falls outside the defined acceptance criteria.
- Drift: The gradual change in an instrument’s performance over time.
- Traceability: The ability to trace the history, application, or location of an item through documented records.
- Measurement Uncertainty: A parameter that characterizes the range of values within which the true value is expected 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 document results.
- QC/QA Reviewer: Review calibration documentation and results.
- Owner Department: Ensure equipment is available and maintained.
- External Service Provider: Conduct external calibration as per schedule.
6. Safety & Preconditions
- Ensure environmental controls are in place (temperature, humidity).
- Allow warm-up/stabilization time for the micropipette.
- Maintain cleanliness of the equipment and workspace.
- Check leveling of the micropipette.
- Verify power supply checks are completed.
7. Standards & Tools
- Reference Standards Required: Calibration weights or standards compliant with ISO17025.
- Traceability Statement: Calibration is traceable to ISO17025.
- Certificate Validity Check: Ensure calibration certificates are current and valid.
- Standard ID Placeholders: [TBD]
8. Calibration Strategy
Calibration will follow the As Found and As Left logic:
- Minimum number of points: At least 5 points including endpoints (20 µL and 200 µL) and midpoints (100 µL).
- Replicate readings at each point: 3 repeats are recommended for accuracy.
9. Step-by-Step Procedure
- Preparation: Gather all necessary tools and reference standards.
- Stabilization: Allow the micropipette to stabilize as per manufacturer’s guidelines.
- As Found checks and data capture: Measure and record the volume at each test point.
- Adjustment rules: If OOT is found, escalate for adjustment as per SOP.
- As Left verification: Re-measure to confirm adjustments are within tolerance.
- Labeling + documentation completion: Complete all required documentation and label the equipment.
Record raw observations contemporaneously to ensure data integrity (ALCOA+).
10. Acceptance Criteria & Calculations
Acceptance criteria: ±1% of the target volume.
Error calculation formula: Error (%) = (Observed Value – True Value) / True Value × 100
Pass/Fail logic: If the error is within ±1%, the result is a pass; otherwise, it is a fail.
Rounding rule placeholder: [TBD]
11. Handling OOT / Failures
- Immediate containment: Tag equipment and stop use.
- Notification & deviation initiation: Notify QA and initiate deviation process.
- Impact assessment trigger: Define impact window and review of affected results/batches.
- Recalibration after repair/adjustment: Ensure recalibration is performed post-adjustment.
- QA disposition placeholders: [TBD]
12. Records & Retention
- Logbook entries: Document all calibration activities.
- Calibration report/certificate filing: Maintain records as per company policy.
- e-records if applicable: [TBD]
- Label content requirements: Calibrated date, due date, by whom, 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 warm-up completed
- Workspace cleanliness checked
- Leveling confirmed
- Power supply verified
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-0022 | Micropipette 20-200 µL | Micropipette | QC | Chemistry Lab | Sample prep | Volume | µL | 20 – 200 | ±1% | 180 days | External | ISO17025 |
Environmental Conditions
Temperature: [TBD]
Relative Humidity: [TBD]
Vibration: [TBD]
Drafts: [TBD]
Test Point Selection
Test points for calibration will be selected as follows:
- Minimum (20 µL)
- 25% of Range (65 µL)
- 50% of Range (110 µL)
- 75% of Range (155 µL)
- Maximum (200 µL)
Results Table
| Test Point | Ref Value | Observed (As Found) | Error | Limit | Pass/Fail | Observed (As Left) | Error | Pass/Fail |
|---|---|---|---|---|---|---|---|---|
| 20 µL | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 65 µL | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 110 µL | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 155 µL | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 200 µL | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
Stepwise Instructions
- Preparation: Ensure the micropipette is clean and calibrated equipment is available.
- Stabilization: Allow the micropipette to stabilize at room temperature for at least 30 minutes.
- Performing Readings:
- For each test point, perform three replicates.
- Record the observed values for each replicate.
- Calculating Error: Calculate the error for each observed value against the reference value.
- Evaluation: Compare the calculated errors against the acceptance criteria of ±1%.
- Documentation: Complete the results table with As Found and As Left data.
Deviation Instruction for OOT
If any observed value is 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 |
|---|---|---|
| [Signature/Date] | [Signature/Date] | [Signature/Date] |
Calibration Checklist
| Asset ID | Equipment | Dept | Area | Parameter | Range | Acceptance | Frequency | Traceability |
|---|---|---|---|---|---|---|---|---|
| CAL-0022 | Micropipette 20-200 µL | QC | Chemistry Lab | Volume | 20 – 200 µL | ±1% | 180 days | ISO17025 |
Pre-calibration
- [ ] Verify environmental conditions are within specified limits
- [ ] Allow micropipette to warm up as per manufacturer guidelines
- [ ] Clean the micropipette as per SOP
- [ ] Ensure the micropipette is leveled
- [ ] Check validity of reference standards
- [ ] Ensure logbook is ready for recording
As Found Execution
- [ ] Set initial setpoints for calibration
- [ ] Perform repeat measurements as required
- [ ] Record raw data accurately
- [ ] Perform necessary calculations for results
OOT Immediate Actions
- [ ] Tag out the micropipette
- [ ] Stop use immediately
- [ ] Notify QA and relevant personnel
- [ ] Document deviation
- [ ] Trigger impact review
As Left Verification
- [ ] Conduct post-adjustment checks
- [ ] Confirm all measurements are within acceptance limits
Documentation & Closure
- [ ] Update equipment label
- [ ] Attach calibration certificate
- [ ] Obtain reviewer sign-off
- [ ] Update next due date in logbook
Data Integrity (ALCOA+): Ensure all data is Attributable, Legible, Contemporaneous, Original, Accurate, and Complete.
Deviation Impact Assessment
| Event Summary |
|---|
|
Asset: Micropipette 20-200 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 tolerance
- Segregate impacted work
Define Impact Window
Last known in-tolerance date: [TBD] to discovery date: [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-0022 | Micropipette 20-200 µL | Micropipette | QC | Chemistry Lab | [TBD] | [TBD] | [TBD] | Volume (20-200) 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) | Acceptance Criteria | Pass/Fail |
|---|---|---|---|
| 20 µL | [TBD] | ±1% | [TBD] |
| 50 µL | [TBD] | ±1% | [TBD] |
| 100 µL | [TBD] | ±1% | [TBD] |
| 150 µL | [TBD] | ±1% | [TBD] |
| 200 µL | [TBD] | ±1% | [TBD] |
As Left Results
| Test Point | Measured Value (µL) | Acceptance Criteria | Pass/Fail |
|---|---|---|---|
| 20 µL | [TBD] | ±1% | [TBD] |
| 50 µL | [TBD] | ±1% | [TBD] |
| 100 µL | [TBD] | ±1% | [TBD] |
| 150 µL | [TBD] | ±1% | [TBD] |
| 200 µL | [TBD] | ±1% | [TBD] |
Measurement Uncertainty Statement: [TBD]
Statement of Conformity: [Pass/Fail overall]
Remarks: [TBD]
Signatures
Performed by: ____________________ Date: ___________
Checked by: ______________________ Date: ___________
Approved by: _____________________ Date: ___________