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| Brand | Hirschmann |
|---|---|
| Origin | Germany |
| Model | Water Quality Sampling Fixative Box |
| Instrument Type | Portable Manual Sampler |
| Sampling Method | Quantitative Fixed-Volume Addition |
| Single Sample Volume | 1 Unit (Configurable per Standard Vial Size) |
| Dispensing Accuracy | ±0.05% |
| Reagent Dispensing Rate | Up to 1000 operations/hour |
| Minimum Sampling Interval | 1 minute |
| Maximum Sampling Depth | 0–10 m |
| Compliance | Designed per HJ 493–2009, ASTM D3370, ISO 5667-3, and US EPA Guidance for Preservation of Aqueous Samples |
| Brand | Hirschmann |
|---|---|
| Origin | Germany |
| Model | COD-Mn |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Potentiometric End-Point Detection with Automated Titration |
| Range | 0–500 mL sample volume |
| Repeatability | ±0.5% RSD |
| Accuracy | ±0.5% of reading |
| LOD | 10 µL reagent delivery resolution |
| Resolution | 0.02 mg/L as O₂ |
| Single-Test Duration | ≤60 s |
| Power | Rechargeable Li-ion battery (50 h continuous operation) |
| Compliance | Designed to meet requirements of GB 11892–1989, ISO 8467:1993, and ASTM D1253–22 |
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