苯 Detection
Formula C₆H₆ · CAS 71-43-2 · 致癌物（IARC 1 类）/ 有机溶剂
Hazards & Toxic Symptoms
Benzene is a colorless liquid with a distinctive aromatic odor, and its vapor is highly toxic. It has been identified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC). Prolonged exposure to low concentrations can lead to aplastic anemia and leukemia. Acute poisoning symptoms include dizziness, nausea, and impaired consciousness.
Occupational Exposure Limits (GBZ 2.1-2019)
| PC-TWA (Time-Weighted Average) | 6 mg/m³ |
|---|---|
| PC-STEL (Short-Term Exposure) | 10 mg/m³ |
| IDLH (Immediately Dangerous to Life or Health) | 500 ppm |
| LEL (Lower Explosive Limit) | 1.2% |
| UEL (Upper Explosive Limit) | 8.0% |
⚠️ Actual alarm thresholds depend on on-site risk assessment. ⚙️ Use the GB Alarm Calculator →
Typical Application Scenarios
- Chemical synthesis (styrene/phenol raw materials)
- Petrochemical industry tank farm
- Coating/paint production
- Rubber vulcanization process
- Laboratory fume hood
Detection Principle / Recommended Sensors
PID photoionization detector (preferred) / infrared absorption / gas chromatography online analyzer
Common Range：0-50 ppm
📦 YOURUIAN Recommended Products
Matching product categories: 苯 detector 苯 analyzer