Standard Operating Procedure for Operating Clean-In-Place (CIP) Systems in Gel Manufacturing
| Department | Gel Manufacturing |
|---|---|
| SOP No. | SOP/GM/057/2025 |
| Supersedes | SOP/GM/057/2022 |
| Page No. | Page 1 of 12 |
| Issue Date | 02/06/2025 |
| Effective Date | 04/06/2025 |
| Review Date | 02/06/2026 |
1. Purpose
To define the procedure for the use of Clean-In-Place (CIP) systems in the cleaning of gel manufacturing equipment to ensure consistent cleaning, avoid cross-contamination, and maintain GMP compliance.
2. Scope
This SOP applies to all CIP systems used in the
Gel Manufacturing unit for cleaning tanks, transfer lines, mixing vessels, and process piping.
3. Responsibilities
- Production Operator: Operates CIP systems as per SOP instructions.
- Maintenance Engineer: Ensures the system is calibrated and functional.
- Quality Assurance: Reviews cleaning records and validates cleaning operations.
4. Accountability
Department Head and QA Head are accountable for the implementation of this SOP.
5. Procedure
5.1 Pre-CIP Checks
- Ensure the equipment to be cleaned is free from product remnants.
- Verify that the CIP system is clean and no previous cleaning residue is present.
- Ensure chemical tanks are filled with validated cleaning agents (e.g., caustic solution, acid rinse).
- Verify that all valves and piping connections are in place.
5.2 Operation of CIP System
- Power on the CIP system and select the appropriate cleaning cycle from the HMI panel.
- Start the water rinse cycle to remove loose soil and residual product.
- Follow with a hot caustic wash for 15–30 minutes, depending on residue type.
- Rinse with purified water to remove caustic traces.
- Perform an acid rinse (e.g., nitric acid solution) if scale or mineral deposits are expected.
- Final rinse with Water for Injection (WFI) or purified water until conductivity meets specification.
5.3 Post-CIP Actions
- Shut off the CIP system and disconnect any temporary piping or valves used.
- Inspect cleaned equipment for water droplets, residue, or missed areas.
- Dry equipment with filtered air or allow it to dry naturally depending on validation protocol.
5.4 Documentation and Verification
- Record parameters like temperature, conductivity, flow rate, and duration in the CIP Logbook (Annexure-1).
- Fill the CIP Execution Checklist (Annexure-2).
- Supervisor to review and QA to verify and sign off the cleaning batch.
5.5 Cleaning Frequency
- After every production batch or product change.
- As per validated cleaning interval based on hold time study.
6. Abbreviations
- CIP: Clean-In-Place
- HMI: Human Machine Interface
- QA: Quality Assurance
- WFI: Water for Injection
7. Documents
- CIP System Logbook – Annexure-1
- CIP Execution Checklist – Annexure-2
8. References
- Validation Master Plan (VMP)
- GMP Guidelines by WHO and Schedule M
- Equipment Cleaning Validation Report
9. SOP Version
Version: 2.0
10. Approval Section
| Prepared By | Checked By | Approved By | |
|---|---|---|---|
| Signature | |||
| Date | |||
| Name | |||
| Designation | Jr. Production Chemist | QA Executive | Head – Manufacturing |
| Department | Gel Manufacturing | Quality Assurance | Manufacturing |
11. Annexures
Annexure-1: CIP System Logbook
| Date | Equipment Cleaned | Chemical Used | Temp (°C) | Duration (min) | Conductivity (µS) | Operator | Verified By |
|---|---|---|---|---|---|---|---|
Annexure-2: CIP Execution Checklist
| Step | Performed (Y/N) | Remarks | Operator Signature | Verified By (QA) |
|---|---|---|---|---|
| Initial Water Rinse | ||||
| Caustic Wash | ||||
| Intermediate Rinse | ||||
| Acid Rinse | ||||
| Final Purified Water Rinse | ||||
| Inspection and Drying |
Revision History
| Revision Date | Revision No. | Details | Reason | Approved By |
|---|---|---|---|---|
| 01/06/2022 | 1.0 | Initial issue | New CIP System Implementation | QA Head |
| 02/06/2025 | 2.0 | Updated procedures and annexures | GMP Compliance | QA Head |