Standard Operating Procedure for Environmental Monitoring in Gel Production Areas
| Department | Gel Manufacturing |
|---|---|
| SOP No. | SOP/GM/197/2025 |
| Supersedes | SOP/GM/197/2022 |
| Page No. | Page 1 of 9 |
| Issue Date | 10/06/2025 |
| Effective Date | 12/06/2025 |
| Review Date | 10/06/2027 |
1. Purpose
To lay down the procedure for systematic environmental monitoring in gel manufacturing areas to ensure control of microbial and particulate contamination.
2. Scope
This procedure applies to all controlled areas of the gel manufacturing facility including dispensing, mixing, filling, and packing areas.
3. Responsibilities
- QA Officer: To perform environmental monitoring and record data.
- Microbiologist: To analyze samples and report results.
- Production Supervisor: To ensure readiness and compliance of the area prior to monitoring.
4. Accountability
Head – Quality Assurance is accountable for implementation and compliance with this SOP.
5. Procedure
5.1 Types of Monitoring
- Airborne
Particulate Monitoring: Using particle counter to assess viable and non-viable particles.
Settle Plates: Petri dishes placed at key locations to collect settling microorganisms.
Surface Monitoring: Swabbing of equipment, walls, and floors.
Personnel Monitoring: Contact plates on gloves and gowns.
5.2 Frequency
- Daily for Grade A areas.
- Weekly for Grade B areas.
- Monthly for Grade C and D areas.
5.3 Sampling Procedure
- Ensure that equipment like particle counters and air samplers are calibrated and clean.
- Label sampling points clearly as per the Environmental Monitoring Map (Annexure-1).
- Use sterile swabs, settle plates, and contact plates for microbial sampling.
- Follow unidirectional flow and avoid disturbances during sampling.
5.4 Limits and Actions
- Follow defined alert and action limits as per WHO and GMP guidelines.
- Any result beyond action limits must trigger a deviation report and investigation.
- Repeated out-of-specification results must lead to area qualification or re-cleaning.
5.5 Data Recording and Trending
- Record all data in the Environmental Monitoring Log (Annexure-2).
- Review monthly trends to detect patterns or potential risks (Annexure-3).
- QA to prepare quarterly reports for internal audit and management review.
5.6 Storage and Disposal
- After incubation, plates must be documented and disposed of in biohazard waste containers.
- Plates showing growth must be labeled and sent for microbial identification.
6. Abbreviations
- CFU: Colony Forming Units
- EM: Environmental Monitoring
- QA: Quality Assurance
- GMP: Good Manufacturing Practices
7. Documents
- Environmental Monitoring Map – Annexure-1
- EM Log Sheet – Annexure-2
- Monthly Trend Analysis Sheet – Annexure-3
- Deviation Report Template – Annexure-4
- Microbial Identification Record – Annexure-5
8. References
- WHO TRS 961 Annex 6 – GMP for Sterile Pharmaceutical Products
- EU GMP Annex 1 – Manufacture of Sterile Medicinal Products
- ISPE Baseline Guide – Cleanroom Design
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: Environmental Monitoring Map
Layout map indicating designated EM points with reference numbers.
Annexure-2: Environmental Monitoring Log
| Date | Location | Sampling Method | CFU Count | Remarks |
|---|---|---|---|---|
Annexure-3: Monthly Trend Analysis Sheet
| Month | Location | CFU Average | Out-of-Spec Count | Action Taken |
|---|---|---|---|---|
Annexure-4: Deviation Report Template
| Report ID | Date | Description | Root Cause | Corrective Action |
|---|---|---|---|---|
Annexure-5: Microbial Identification Record
| Sample ID | Source | Organism Identified | Test Date | Microbiologist |
|---|---|---|---|---|
Revision History
| Revision Date | Revision No. | Change Description | Reason | Approved By |
|---|---|---|---|---|
| 15/05/2022 | 1.0 | Initial version | New SOP | QA Manager |
| 10/06/2025 | 2.0 | Added microbial identification procedures | Regulatory update | QA Head |