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| Brand | Tongtai Union (TTL) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TTL-4SH |
| Instrument Category | Laboratory Water Quality Analyzer |
| Analyte | Hydrogen Sulfide (H₂S) |
| Detection Method | Methylene Blue Spectrophotometry (per HJ 1226–2021 & GB 17378.4–2007) |
| Heating Range | Ambient to 90 °C |
| Temperature Accuracy | ±1 °C |
| Power Supply | AC 220 V, 50/60 Hz, 2000 W |
| Total Heating Power | 1800 W |
| Water Bath Capacity | 2000 mL × 4 positions |
| Nitrogen Flow Control | 0–10 L/min per channel |
| Stirring Speed Range | 0–3000 rpm |
| Stirring Control | Stepless (independent per sample) |
| Sample Rack Travel | 100 ±2 mm vertical lift |
| Construction Materials | Stainless steel frame with PTFE-coated internal components |
| Drain Valve | Stainless steel manual valve |
| Dimensions (W×D×H) | 540 × 520 × 835 mm |
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