Hydrogen Quality Analysis System
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| Brand | ENTECH |
|---|---|
| Model | 7200H+4700H |
| Detection Limit | Sub-ppt (parts-per-quadrillion) for Sulfur Compounds, Formaldehyde, and Halogenated Organics |
| Cryogenic Trap | Liquid Nitrogen–Cooled Single-Stage Fused-Silica Cold Trap |
| Sample Introduction | Electronic Volume Control (EVC) with Matrix-Independent Quantitation |
| Sample Line Treatment | Deactivated Fused-Silica Tubing (SilcoNert® or Equivalent) |
| Compliance | ASTM D7652, GB/T 37244–2018, GB/T 44243–2024, T/CECA-G 0180–2022 |
| Brand | ENTECH |
|---|---|
| Origin | USA |
| Model | 7200H+4700H |
| Application | Trace-level impurity preconcentration for high-purity hydrogen fuel analysis |
| Cooling Method | Liquid nitrogen–cooled single-stage cryogenic trap |
| Sample Line Treatment | Silica-fused inertized tubing |
| Volume Measurement | EVC (Electronic Volume Control) technology |
| Compliance | ASTM D7652, GB/T 37244–2018, GB/T 44243–2024, T/CECA-G 0180–2022 |