Calibration Documents: Balance Calibration Weight 2 g (CAL-0331)
| Asset ID | CAL-0331 |
|---|---|
| Equipment | Balance Calibration Weight 2 g |
| Equipment Type | Standard Weight |
| Department | Calibration Lab |
| Area/Location | Metrology |
| Process Use | Mass standard |
| Parameter | Weight |
| Units | g |
| Range Min | 2 |
| Range Max | 2 |
| Acceptance Criteria | Class F1/E2 |
| Calibration Frequency (days) | 365 |
| Calibration Type | External |
| Traceability | ISO17025 |
Table of Contents
Calibration SOP
1. Purpose
The calibration of the Balance Calibration Weight 2 g is performed to ensure the accuracy of mass measurements within the Calibration Lab. This is critical for maintaining patient safety, ensuring batch quality, and upholding data integrity in compliance with GMP standards.
2. Scope
- Asset ID: CAL-0331
- Equipment Name/Type: Balance Calibration Weight 2 g / Standard Weight
- Department/Area: Calibration Lab / Metrology
- Process Use: Mass standard
- Parameter: Weight
- Range: 2 g
- Units: g
- Calibration Frequency: 365 days
3. Definitions
- Calibration: The process of verifying and adjusting the accuracy of measurement equipment.
- Verification: Confirming that the equipment meets specified requirements.
- Adjustment: Modifying the equipment to bring it within specified limits.
- As Found: The condition of the equipment prior to any adjustments.
- As Left: The condition of the equipment after adjustments have been made.
- OOT (Out of Tolerance): A condition where the measurement falls outside the specified acceptance criteria.
- Drift: The gradual change in measurement accuracy 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 periodic verification of equipment performance between calibrations.
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 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 calibration area and equipment.
- Check leveling of the balance before use.
- Verify power supply stability and functionality.
7. Standards & Tools
- Reference Standards Required: Class F1/E2 calibration weights.
- Traceability Statement: ISO17025.
- Certificate Validity Check: Ensure all calibration certificates are current and valid.
- Standard ID Placeholders: [TBD]
8. Calibration Strategy
Calibration will follow the As Found then As Left logic:
- Minimum number of points: 5 points including endpoints 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 balance to stabilize in the calibration environment.
- As Found checks and data capture: Measure the weight using the standard weight and record observations contemporaneously.
- Adjustment rules: If OOT, escalate to QA for further action; adjustments are not permitted unless specified.
- As Left verification: Confirm that the equipment is within tolerance after any adjustments.
- Labeling + documentation completion: Complete all required documentation and label the equipment appropriately.
10. Acceptance Criteria & Calculations
Acceptance criteria: Class F1/E2.
Error calculation formula: Error (%) = (Observed Value – True Value) / True Value × 100
Pass/Fail Logic: If error falls within acceptance criteria, pass; otherwise, 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 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 table (test points, ref, observed, error, acceptance, pass/fail; include As Found + As Left columns)
Annexure B: Quick checklist
Annexure C: Example label text (with [TBD] placeholders)
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-0331 | Balance Calibration Weight 2 g | Standard Weight | Calibration Lab | Metrology | Mass standard | Weight | g | 2 – 2 | Class F1/E2 | 365 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: 2 g
- 25%: 2 g
- 50%: 2 g
- 75%: 2 g
- Maximum: 2 g
Results Table
| Test Point | Ref Value | Observed (As Found) | Error | Limit | Pass/Fail | Observed (As Left) | Error | Pass/Fail |
|---|---|---|---|---|---|---|---|---|
| 2 g | 2 g | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 2 g | 2 g | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 2 g | 2 g | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 2 g | 2 g | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
| 2 g | 2 g | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
Stepwise Instructions
- Preparation: Ensure the calibration weight is clean and free from any contaminants.
- Stabilization: Allow the calibration weight to acclimate to the environmental conditions for at least [TBD] minutes.
- Performing Readings: Take at least three replicate measurements at each test point.
- Calculating Error: Calculate the error for each observed value using the formula: Error = Observed – Ref Value.
- Evaluation: Compare the calculated error against the acceptance criteria.
- Documentation: Record all observations in the results table and ensure data integrity (ALCOA+).
Deviation Instruction for OOT
If any observed value is out of tolerance (OOT):
- Stop use of the equipment.
- Notify the supervisor immediately.
- Open a deviation report.
- Quarantine impacted results window: [TBD].
- Await QA decision on further actions.
Approvals
| Prepared | Reviewed | Approved |
|---|---|---|
| [Signature/Date] | [Signature/Date] | [Signature/Date] |
Calibration Checklist
| Asset ID | Equipment | Dept | Area | Parameter | Range | Acceptance | Frequency | Traceability |
|---|---|---|---|---|---|---|---|---|
| CAL-0331 | Balance Calibration Weight 2 g | Calibration Lab | Metrology | Weight | 2 g | Class F1/E2 | 365 days | ISO17025 |
Pre-calibration
- [ ] Verify environmental conditions are within specified limits
- [ ] Ensure equipment has warmed up for the required duration
- [ ] Clean the calibration weight and surrounding area
- [ ] Level the balance if applicable
- [ ] Check validity of reference standards
- [ ] Ensure logbook is ready for entries
As Found Execution
- [ ] Set the balance to specified setpoints
- [ ] Perform repeat measurements
- [ ] Record all raw data accurately
- [ ] Perform necessary calculations
OOT Immediate Actions
- [ ] Tag out the equipment
- [ ] Stop use of the equipment
- [ ] Notify the appropriate personnel
- [ ] Document deviation in the logbook
- [ ] Trigger impact review process
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
Deviation Impact Assessment
| Event Summary |
|---|
|
Asset: Balance Calibration Weight 2 g Date: [TBD] Discovered By: [TBD] Document References: [TBD] As Found Results Summary: [TBD] |
Immediate Containment Checklist
- Stop use of the asset
- Label/Tag the asset as out of tolerance
- 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-0331 | Balance Calibration Weight 2 g | Standard Weight | Calibration Lab | Metrology | [TBD] | [TBD] | [TBD] | Weight / 2 g / g | Class F1/E2 |
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 (g) | Acceptance Criteria | Pass/Fail |
|---|---|---|---|
| 1 | [TBD] | Class F1/E2 | [TBD] |
| 2 | [TBD] | Class F1/E2 | [TBD] |
| 3 | [TBD] | Class F1/E2 | [TBD] |
| 4 | [TBD] | Class F1/E2 | [TBD] |
| 5 | [TBD] | Class F1/E2 | [TBD] |
As Left Results
| Test Point | Measured Value (g) | Acceptance Criteria | Pass/Fail |
|---|---|---|---|
| 1 | [TBD] | Class F1/E2 | [TBD] |
| 2 | [TBD] | Class F1/E2 | [TBD] |
| 3 | [TBD] | Class F1/E2 | [TBD] |
| 4 | [TBD] | Class F1/E2 | [TBD] |
| 5 | [TBD] | Class F1/E2 | [TBD] |
Measurement Uncertainty Statement: [TBD]
Statement of Conformity: [TBD]
Remarks: [TBD]
Signatures
Performed by: ____________________ Date: __________
Checked by: ____________________ Date: __________
Approved by: ____________________ Date: __________