甲醇 Detection
Formula CH₃OH · CAS 67-56-1 · 高毒 / 易燃 / 致盲
Hazards & Toxic Symptoms
Methanol is a colorless, flammable liquid with toxic vapor. Drinking 10 ml can cause blindness, and 30 ml can be fatal. Inhaling the vapor can lead to headaches and optic nerve damage.
Occupational Exposure Limits (GBZ 2.1-2019)
| PC-TWA (Time-Weighted Average) | 25 mg/m³ |
|---|---|
| PC-STEL (Short-Term Exposure) | 50 mg/m³ |
| IDLH (Immediately Dangerous to Life or Health) | 6000 ppm |
| LEL (Lower Explosive Limit) | 6.0% |
| UEL (Upper Explosive Limit) | 36.5% |
⚠️ Actual alarm thresholds depend on on-site risk assessment. ⚙️ Use the GB Alarm Calculator →
Typical Application Scenarios
- Methanol fuel / synthetic alcohol
- Antifreeze/glass water
- Formaldehyde/acetic acid raw material
- Biodiesel catalyst
- Laboratory
Detection Principle / Recommended Sensors
PID (requires 11.7 eV lamp for high sensitivity) / catalytic combustion
Common Range：0-200 ppm
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Matching product categories: 甲醇 detector 甲醇 analyzer