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| Brand | BCT |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | ODS 620 |
| Instrument Type | Conventional Positive-Pressure Gas Sampler |
| Operating Pressure Range | Up to 0.7 MPa (101.5 psi) for high-pressure sampling |
| Pump Construction | All-metal diaphragm pump (O-ring–free fluid path) |
| Power Supply | Rechargeable lithium-ion battery pack |
| Continuous Operation | Up to 8 hours per charge |
| Dual-Port Sampling Capability | Yes, for parallel or comparative sampling via dual-inlet exchange canister |
| Purge/Flush Mode | Vacuum evacuation and pressurized purge cycles |
| Exchange Cycle Time | < 60 seconds per cycle |
| Compliance | Designed for EPA TO-14A/TO-15-compliant volatile organic compound (VOC) sampling workflows |
| Brand | BCT |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TM 1400D |
| Instrument Type | 24-Hour Constant-Temperature Constant-Flow Gas Sampler |
| Instrument Architecture | 4-Channel Remote-Controlled Gas Sampler |
| Flow Range | 0.12–400 mL/min |
| Vacuum Pressure Capacity | ≥500 Pa |
| Flow Stability (24 h) | ≤±1% |
| Flowmeter Accuracy | ±1.5% |
| Service Life at Max Flow & Backpressure | ≥5000 h |
| Continuous Operation Duration at Max Flow & Backpressure | 10 min–2 h |
| Brand | BCT |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | RS1200 |
| Instrument Type | Conventional Gas Sampler |
| Instrument Configuration | Dual-Channel Gas Sampler |
| Flow Range | 0–3.0 L/min |
| Maximum Vacuum Pressure | < 0 Pa (i.e., capable of generating vacuum) |
| Flow Stability | ≤ ±2% over 1 h |
| Flowmeter Accuracy | ±2% FS |
| Service Life at Max Flow & Backpressure | ≥ 5000 h |
| Continuous Operation Duration at Max Flow & Backpressure | 1–24 h with flow deviation ≤ ±2% |
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