EnvironmentalMonitoringCleanroomQualityChecker

Environmental Monitoring Cleanroom Quality Checker — Cleanroom Monitoring (EU GMP Annex 1)

ℹ️  Utility checks environmental parameters compliance with EU GMP Annex 1 requirements:
   • Cleanliness Grades: A, B, C, D
   • Airborne particles: >=0.5 µm and >=5.0 µm (particles/m³)
   • Microbiology: Settle plates (CFU/4h) and Surfaces (CFU/plate)

⚠️  CRITICAL: Exceeding Action Limits requires immediate process stop and investigation!
   For Grade A, any microbiological deviation (even 1 CFU) is critical.

Usage:
 EnvironmentalMonitoringCleanroomQualityChecker.exe                            → demo mode (console output)
 EnvironmentalMonitoringCleanroomQualityChecker.exe input.csv output.json      → evaluate your data

Input format:
BatchNumber,LocationID,Grade,Particles05um,Particles50um,SettlePlatesCFU,SurfaceCFU

Example:
 EM-SHIFT-2026-001,LOC-A-01,A,2500,10,0,0

— WHY IS THIS NEEDED?
Environmental Monitoring (EM) is a key element of the quality assurance system for sterile manufacturing.
• EU GMP Annex 1 (2022) sets strict limits for particles and microorganisms in zones of different grades.
• Particle control confirms HEPA filtration efficiency and barrier integrity.
• Microbiological control reveals risks of product contamination by personnel or equipment.
• Automation of limit checks eliminates human errors in data interpretation and accelerates response to deviations.

⚠️  CRITICAL:
• Grade A: <1 CFU for settle plates and surfaces (effectively 0). Particles >=0.5 µm: 3,520 particles/m³.
• Grade B: Settle plates <=5, Surfaces <=5. Particles >=0.5 µm: 352,000 particles/m³.
• Exceeding limits requires immediate QA notification and initiation of investigation (Deviation/CAPA).
• Data must be integrated with Trending systems to detect performance drift.

Key features:
• Automatic limit check for all cleanliness grades (A-D).
• Separate control of physical (particles) and microbiological parameters.
• Generation of PASS/ALERT statuses for LIMS integration.

Critical parameters:
• Particles >=0.5um: Grade specific limits
• Particles >=5.0um: Grade specific limits
• Settle Plates: Grade specific limits (Strict for Grade A)
• Surface: Grade specific limits (Strict for Grade A)

💡 Usage tips:
1. Regularly calibrate particle counters and incubate plates according to validated methods.
2. Use active air sampling methods for air and contact plates for surfaces.
3. Account for sampling time (e.g., 4 hours for settle plates).
4. Set Alert Limits below Action Limits for early trend detection.
5. Save raw data and colony photographs for microorganism identification.

⚠️ Note: Unlike product sterility tests, EM assesses contamination risk. Even one microorganism found in Grade A can lead to batch rejection if link to product is not excluded.