单推三 Detection
Formula (MMH/UDMH) · CAS 60-34-4 (MMH) · 高毒性 / 高致癌性 / 火箭推进剂
Hazards & Toxic Symptoms
The term "single-propellant" broadly refers to liquid propellants such as unsymmetrical dimethylhydrazine (UDMH) and monomethylhydrazine (MMH). These are colorless, flammable liquids with extremely toxic vapors that are carcinogenic and teratogenic. They are quickly absorbed through the skin.
Occupational Exposure Limits (GBZ 2.1-2019)
| PC-TWA (Time-Weighted Average) | 0.08 mg/m³ (MMH) |
|---|
⚠️ Actual alarm thresholds depend on on-site risk assessment. ⚙️ Use the GB Alarm Calculator →
Typical Application Scenarios
- Aerospace launch site
- Missile/Satellite Fuel Storage Room
- Propellant filling operation
- Aerospace Testing Workshop
Detection Principle / Recommended Sensors
Electrochemical (dedicated MMH/UDMH sensor) / Chemiluminescence
Common Range：0-10 ppm
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