Phosgene (COCl₂) — Fixed Gas Detectors Save Lives in Chemical Plants
Phosgene (COCl₂) is a critical feedstock for polycarbonates, polyurethanes, and pharmaceuticals, handled continuously in large chemical facilities. Equipment failures or pipe damage during continuous processes can cause concentrations to reach dangerous levels almost instantly. Since leaks can occur during nights and weekends when no workers are present, a 24/7 fixed gas detection system is essential.
💡 Key Point
Chemical plants handling phosgene (COCl₂) need WANDI FIX800 5-gas fixed detectors for round-the-clock surveillance — enabling immediate alarm, evacuation, and automatic shutoff even at night.
Health Effects of Phosgene
| Concentration (ppm) | Duration | Health Effects |
|---|---|---|
| 0.1 | 8 h TWA | Legal limit — eye and throat irritation |
| 0.5–1 | Short-term | Coughing, tearing, chest tightness |
| 2 (STEL) | 15 min | Short-term limit — severe respiratory irritation |
| 2–5 | Delayed (1–24 h) | Delayed pulmonary edema |
| 25 (IDLH) | Immediately | Immediately life-threatening |
Sources: NIOSH Pocket Guide (CDC/NIOSH); Korean MoEL Chemical Exposure Standards
Prevention Scenario with WANDI FIX800
- 1Continuous process monitoring: FIX800 installed near pipes and reactors detects leaks immediately
- 2Emergency shutoff: Relay output automatically triggers emergency shutoff valves and ventilation fans
- 3FIX-DS display board: Real-time concentration at the entry for pre-entry safety assessment
- 4Long-term data storage: Process anomaly tracking and mandatory legal record-keeping
WANDI FIX800 — Fixed 5-Gas Detector
WANDI FIX800 simultaneously detects up to 5 gases including phosgene, integrates with relay-driven emergency systems, and pairs with the FIX-DS display board for entry-point safety confirmation — forming a complete 24/7 phosgene hazard management system.
A Closer Look at the WANDI FIX800
Below are real photos of the WANDI FIX800 fixed multi-gas detector.
