Guangming Lihua
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| Brand | Guangming Lihua |
|---|---|
| Origin | Japan |
| Model | DNPH 815H |
| Type | Single-Channel Handheld Air Sampling Cartridge for Carbonyl Compounds |
| Flow Rate | 0.2 L/min |
| Pressure Drop | 0.3 kPa at 0.2 L/min |
| Flow Stability | ±5% |
| Flowmeter Accuracy | ±5% |
| Service Life at Max Flow & Backpressure | 100 h |
| Continuous Operation at Max Flow & Backpressure | 2 min |
| DNPH Coating Mass | ~1 mg |
| Sorbent Mass | ~400 mg Silica Gel Impregnated with DNPH |
| Blank Levels (Factory Tested) | Formaldehyde <0.03 µg, Acetaldehyde <0.03 µg, Acetone <0.10 µg |
| Carbonyl Collection Capacity | 2.3 µmol (e.g., ~70 µg formaldehyde) |
| Recovery Rates (Reported) | Formaldehyde 99.3%, Acetaldehyde 102.6%, Acetone 95.4% |
| Shelf Life | 12 months (refrigerated storage required) |
| Package | 10 units per bag |