Procedure for Managing Discrepancies in Batch Yield
| Department | Aerosol |
|---|---|
| SOP No. | SOP/Aerosol/190/2025 |
| Supersedes | SOP/Aerosol/190/2022 |
| Page No. | Page 1 of Y |
| Issue Date | 06/02/2025 |
| Effective Date | 16/02/2025 |
| Review Date | 06/02/2028 |
1. Purpose
The purpose of this Standard Operating Procedure (SOP) is to establish a systematic process for identifying, analyzing, and resolving batch yield discrepancies in aerosol manufacturing. This ensures batch consistency, prevents material losses, and maintains compliance with GMP standards.
2. Scope
This SOP applies to all batch production processes, including raw material input, formulation, filling, and packaging of aerosol products.
3. Responsibilities
- Production Team: Responsible for monitoring yield during batch processing.
- Quality Assurance (QA) Team: Responsible for investigating and approving corrective actions.
- Quality Control (QC) Team: Responsible for verifying material usage accuracy.
- Warehouse Team: Responsible for reconciling raw material issuance with batch records.
4. Accountability
The Production Manager is accountable for ensuring batch yield discrepancies are documented, investigated, and corrected.
5. Procedure
5.1. Monitoring Batch Yield
- Track batch yield at each stage of production.
- Compare actual yield with expected yield as per the Batch Manufacturing Record (BMR).
- Record yield data in the Batch Yield Monitoring Log (Annexure-1).
5.2. Identifying Batch Yield Discrepancies
- Identify deviations if the actual yield is outside the allowable range.
- Cross-check raw material consumption and losses.
- Document discrepancies in the Batch Yield Discrepancy Report (Annexure-2).
5.3. Investigating Discrepancies
- Conduct root cause analysis to determine
possible reasons for yield losses.
Verify equipment calibration and process parameters.
Record findings in the Yield Investigation Log (Annexure-3).
5.4. Corrective and Preventive Actions (CAPA)
- Implement corrective measures such as process optimization or equipment recalibration.
- Preventive actions may include revising SOPs or operator training.
- Document CAPA in the Corrective Action Log (Annexure-4).
5.5. Final Yield Reconciliation
- Reconcile the final yield with raw material consumption.
- Ensure any deviations are justified and approved.
- Record the final reconciliation in the Batch Reconciliation Report (Annexure-5).
6. Abbreviations
- GMP: Good Manufacturing Practice
- QA: Quality Assurance
- QC: Quality Control
- BMR: Batch Manufacturing Record
- SOP: Standard Operating Procedure
7. Documents
- Batch Yield Monitoring Log (Annexure-1)
- Batch Yield Discrepancy Report (Annexure-2)
- Yield Investigation Log (Annexure-3)
- Corrective Action Log (Annexure-4)
- Batch Reconciliation Report (Annexure-5)
8. References
- Good Manufacturing Practice (GMP) Guidelines
- FDA Guidelines on Batch Yield Reconciliation
- ISO 9001 – Quality Management Systems
9. SOP Version
Version: 2.0
10. Approval Section
| Prepared By | Checked By | Approved By | |
|---|---|---|---|
| Signature | |||
| Date | |||
| Name | |||
| Designation | |||
| Department |
11. Annexures
Annexure-1: Batch Yield Monitoring Log
| Batch No. | Expected Yield (%) | Actual Yield (%) | Checked By |
|---|---|---|---|
| BN-215 | 98% | 95.5% | QA Team |
Annexure-2: Batch Yield Discrepancy Report
| Batch No. | Deviation Observed (%) | Possible Cause | Reviewed By |
|---|---|---|---|
| BN-216 | 3.5% | Loss in filling process | QA Team |
Annexure-3: Yield Investigation Log
| Batch No. | Investigation Findings | Corrective Action | Reviewed By |
|---|---|---|---|
| BN-217 | Valve leakage | Seal tightening | QA Team |
Annexure-4: Corrective Action Log
| Issue Identified | Corrective Action | Implementation Date | Approved By |
|---|---|---|---|
| High material wastage | Process optimization | 08/02/2025 | Anjali Sharma |
Annexure-5: Batch Reconciliation Report
| Batch No. | Final Yield (%) | Approval Status | Reviewed By |
|---|---|---|---|
| BN-218 | 97% | Approved | QA Team |
12. Revision History:
| Revision Date | Revision No. | Revision Details | Reason for Revision | Approved By |
|---|---|---|---|---|
| 01/01/2024 | V 1.0 | Initial Release | First Issue | Anjali Sharma |
| 01/01/2025 | V 2.0 | Updated reconciliation procedures | GMP Compliance | Anjali Sharma |