Calibration Documents: Balance Calibration Weight 1000 g (CAL-0339)
| Asset ID | CAL-0339 |
|---|---|
| Equipment | Balance Calibration Weight 1000 g |
| Equipment Type | Standard Weight |
| Department | Calibration Lab |
| Area/Location | Metrology |
| Process Use | Mass standard |
| Parameter | Weight |
| Units | g |
| Range Min | 1000 |
| Range Max | 1000 |
| 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 1000 g is performed to ensure the accuracy of mass measurements, which is critical for maintaining patient safety, ensuring batch quality, and preserving data integrity. Accurate weight measurements are essential in pharmaceutical processes to prevent dosage errors and ensure compliance with regulatory standards.
2. Scope
- Asset ID: CAL-0339
- Equipment Name/Type: Balance Calibration Weight 1000 g / Standard Weight
- Department/Area: Calibration Lab / Metrology
- Process Use: Mass standard
- Parameter: Weight
- Range: 1000 g
- Units: g
- Calibration Frequency: 365 days
3. Definitions
- Calibration: The process of comparing a measurement standard to a known reference to determine its accuracy.
- Verification: The process of confirming that a measurement system is functioning correctly.
- Adjustment: The process of modifying a measurement system to bring it into alignment with a standard.
- As Found: The condition of the equipment prior to any adjustments being made.
- 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 a measurement system’s output over time.
- Traceability: The property of a measurement result whereby it can be related to appropriate standards.
- Measurement Uncertainty: A parameter that characterizes the range of values within which the true value is expected to lie.
- Intermediate Check: A verification step performed between calibrations to ensure ongoing 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 results and documentation.
- 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 recommendations.
- Maintain cleanliness of the calibration area and equipment.
- Check that the equipment is level before calibration.
- Verify power supply stability and functionality.
7. Standards & Tools
- Reference Standards Required: ISO17025 certified calibration weights.
- Traceability Statement: All calibrations are traceable to ISO17025.
- Certificate Validity Check: Ensure calibration certificates are current and valid.
- Standard ID: [TBD]
8. Calibration Strategy
Calibration will follow the As Found and 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 the data contemporaneously.
- Adjustment rules: If OOT is detected, escalate to the QA team for further instructions.
- As Left verification: After any adjustments, verify the weight again and record results.
- Labeling + documentation completion: Complete all required documentation and label the equipment with calibration details.
10. Acceptance Criteria & Calculations
Acceptance criteria: Class F1/E2.
Error calculation formula: Error (%) = (Measured Value – True Value) / True Value × 100
Pass/Fail Logic: If the error falls within the acceptance criteria, 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 document the deviation.
- Impact assessment trigger: Define impact window and review affected results/batches.
- Recalibration after repair/adjustment: Schedule recalibration once adjustments are made.
- QA disposition placeholders: [TBD]
12. Records & Retention
- Logbook entries: Document all calibration activities.
- Calibration report/certificate filing: Maintain records of calibration certificates.
- 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 warmed up and stabilized
- Calibration area cleanliness confirmed
- Equipment leveled
- Power supply checked
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-0339 | Balance Calibration Weight 1000 g | Standard Weight | Calibration Lab | Metrology | Mass standard | Weight | g | 1000 g | Class F1/E2 | 365 days | External | ISO17025 |
Environmental Conditions
Temperature: [TBD]
Relative Humidity: [TBD]
Vibration: [TBD]
Drafts: [TBD]
Test Point Selection
- Minimum: 1000 g
- 25%: 1000 g
- 50%: 1000 g
- 75%: 1000 g
- Maximum: 1000 g
Results Table
| Test Point | Ref Value | Observed (As Found) | Error | Limit | Pass/Fail | Observed (As Left) | Error | Pass/Fail |
|---|---|---|---|---|---|---|---|---|
| 1000 g | 1000 g | [TBD] | [TBD] | ±[TBD] | [TBD] | [TBD] | [TBD] | [TBD] |
Stepwise Instructions
- Preparation: Ensure the calibration area is clean and free from disturbances.
- Stabilization: Allow the standard 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 against the reference value.
- Evaluation: Compare the calculated errors against the acceptance criteria.
- Documentation: Record all observations, calculations, and results in the calibration log.
Deviation Instruction for OOT
- Stop use of the asset immediately.
- Notify the QA department.
- 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-0339 | Balance Calibration Weight 1000 g | Calibration Lab | Metrology | Weight | 1000 g | Class F1/E2 | 365 days | ISO17025 |
Pre-calibration
- [ ] Verify environmental conditions are within specified limits
- [ ] Allow equipment to warm up as per SOP
- [ ] Clean the calibration weight and surrounding area
- [ ] Level the balance if applicable
- [ ] Confirm validity of reference standards
- [ ] Ensure logbook is ready for entries
As Found Execution
- [ ] Set the calibration weight to specified setpoints
- [ ] Perform repeat measurements as required
- [ ] Record all raw data accurately
- [ ] Perform necessary calculations for results
OOT Immediate Actions
- [ ] Tag out the equipment
- [ ] Stop use of the calibration weight
- [ ] Notify the appropriate personnel
- [ ] Document deviation from acceptance criteria
- [ ] Trigger impact review process
As Left Verification
- [ ] Conduct post-adjustment checks
- [ ] Confirm all measurements are within specified limits
Documentation & Closure
- [ ] Update equipment label with calibration date
- [ ] Attach calibration certificate to records
- [ ] Obtain reviewer sign-off
- [ ] Update next due date in logbook
Deviation Impact Assessment
| Event Summary | Details |
|---|---|
| Asset | Balance Calibration Weight 1000 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-0339 | Balance Calibration Weight 1000 g | Standard Weight | Calibration Lab | Metrology | [TBD] | [TBD] | [TBD] | Weight / 1000 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) | Pass/Fail |
|---|---|---|
| 1 | [TBD] | [TBD] |
| 2 | [TBD] | [TBD] |
| 3 | [TBD] | [TBD] |
| 4 | [TBD] | [TBD] |
| 5 | [TBD] | [TBD] |
As Left Results
| Test Point | Measured Value (g) | Pass/Fail |
|---|---|---|
| 1 | [TBD] | [TBD] |
| 2 | [TBD] | [TBD] |
| 3 | [TBD] | [TBD] |
| 4 | [TBD] | [TBD] |
| 5 | [TBD] | [TBD] |
Measurement Uncertainty Statement: [TBD]
Statement of Conformity: [Pass/Fail overall]
Remarks: [TBD]
Signatures
Performed by: ______________________ Date: ____________
Checked by: ______________________ Date: ____________
Approved by: ______________________ Date: ____________