Standard Operating Procedure for Sealing Gel Packaging to Ensure Contamination Control
| Department | Gel Manufacturing |
|---|---|
| SOP No. | SOP/GM/097/2025 |
| Supersedes | SOP/GM/097/2022 |
| 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 a standard procedure for effective sealing of gel packaging in order to prevent microbial, particulate, or physical contamination and to maintain product integrity until the point of use.
2. Scope
This SOP applies to all personnel involved in the primary and secondary packaging of gels
in tubes, jars, sachets, or other containers used in the Gel Manufacturing department.
3. Responsibilities
- Packaging Operators: Operate sealing machines and verify the integrity of each seal.
- Quality Assurance: Inspect sealed units during and after sealing process.
- Maintenance Engineer: Ensure periodic servicing and calibration of sealing machines.
- Packaging Supervisor: Ensure SOP compliance and documentation completeness.
4. Accountability
The Head – Manufacturing is accountable for implementing and monitoring the proper sealing operations to ensure contamination control of packaged gel products.
5. Procedure
5.1 Preparation
- Verify the cleanliness of the sealing equipment and working area as per SOP for equipment cleaning.
- Ensure the sealing machine is properly set up as per packaging component specifications (tube/jar type, material, cap style).
- Check the sealing temperature, pressure, and dwell time settings.
- Perform sealing on a few dummy samples and inspect for quality attributes such as uniformity, strength, and appearance.
- Send dummy samples to QA for initial approval before batch processing.
5.2 Sealing Operation
- Start sealing process only after line clearance and QA approval of trial samples.
- Feed filled tubes/jars into the sealing machine carefully to avoid spillage or misalignment.
- Ensure each unit is completely sealed with no product leakage, wrinkles, air pockets, or damage to packaging material.
- Monitor sealing machine parameters at predefined intervals (e.g., every 30 minutes).
- Remove any defective or incompletely sealed products from the line and record as rejected units.
- Check seals periodically under magnification for fine cracks or breaches.
5.3 Contamination Prevention Measures
- Maintain personal hygiene and gowning protocol while operating sealing stations.
- Operate under Grade D environment with regular environmental monitoring (refer to environmental SOP).
- Ensure packaging components (tubes, jars, seals) are pre-cleaned and kept in sanitized bins until use.
- Avoid touching the sealing end with bare hands or unsterile tools.
5.4 Post-Sealing Activities
- Segregate and label the sealed batch as “Sealed and Awaiting Inspection”.
- Conduct random destructive testing on sealed units (Annexure-2).
- Log sealing machine parameters, inspection results, and rejection counts in the Sealing Logbook (Annexure-1).
6. Abbreviations
- SOP: Standard Operating Procedure
- QA: Quality Assurance
- GMP: Good Manufacturing Practices
7. Documents
- Sealing Operation Logbook – Annexure-1
- Seal Integrity Inspection Report – Annexure-2
- Line Clearance Checklist
- Batch Manufacturing Record (BMR)
8. References
- Schedule M – Packaging Section
- WHO TRS 986 – Guidelines on Packaging
- FDA 21 CFR Part 211.130 – Packaging and Labeling Control
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: Sealing Operation Logbook
| Date | Batch No. | Start Time | End Time | Machine ID | Temp (°C) | Pressure (Bar) | Rejects | Operator |
|---|---|---|---|---|---|---|---|---|
Annexure-2: Seal Integrity Inspection Report
| Batch No. | |
|---|---|
| Sample Size | |
| Number of Acceptable Units | |
| Number of Rejected Units | |
| Observed Issues | |
| QA Inspector Name | |
| Date |
Revision History
| Revision Date | Revision No. | Change Description | Reason | Approved By |
|---|---|---|---|---|
| 01/06/2022 | 1.0 | Initial Issue | New SOP implementation | QA Head |
| 02/06/2025 | 2.0 | Included seal integrity testing and updated preventive measures | Annual Review | QA Head |