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| Brand | HUANKONG |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | ZHK6250 |
| Instrument Type | Laboratory BOD Analyzer |
| Principle | Microbial Electrode Method |
| Measurement Range | 2–6000 mg/L |
| Detection Limit | Compliant with HJ 505–2009 |
| Accuracy | ±1% (for samples >20 mg/L) |
| Repeatability | Compliant with HJ 505–2009 |
| Sample Capacity | 132 incubation positions, 60 measurement positions |
| Temperature Control | Dual-zone thermostatic system, maintained at 20.0 ± 0.5 °C |
| Electrode | YSI-type electrochemical dissolved oxygen sensor (optional luminescent DO probe) |
| Calibration | Fully automated zero/span and slope calibration |
| Cleaning | Spray-type electrode and sample vial cleaning system |
| Compliance | Designed and validated per HJ 505–2009, aligned with ISO 5815-1:2016 (BOD determination by microbial electrode method) |
| Brand | HUANKONG |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | ZHK6250 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 2–6000 mg/L |
| Accuracy | ±1% (for samples >20 mg/L) |
| Origin | Japan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | BOD-990-D20C |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 0.001 mg/L |
| Accuracy | ±0.1 mg/L |
| Single-Sample Measurement Time | 45 s |
| Repeatability | ±0.1 mg/L |
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