Parr Instruments
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| Brand | Parr Instruments |
|---|---|
| Origin | USA |
| Instrument Type | Oxygen Bomb Calorimeter |
| Measurement Mode | Isoperibol Calorimetry |
| Automation Level | Semi-Automatic |
| Temperature Resolution | 0.001 °C |
| Relative Standard Deviation | ≤0.3% |
| Bomb Types | 1108P (Alloy 20), 1108PCL (Hastelloy G-30), 1104 (High-Pressure Bomb) |
| Bomb Sealing | Threaded Cap Closure |
| Sample Throughput | 2–3 Determinations per Hour |
| Bomb Design | Removable Vessel Assembly |
| Compliance | ASTM D240, ASTM D4809, ISO 1928, EN 14918, GB/T 213 |
| Brand | Parr Instruments |
|---|---|
| Origin | USA |
| Model | 6755 |
| Measurement Mode | Isothermal Calorimetry |
| Instrument Type | Oxygen-Bomb-Based Dissolution Calorimeter |
| Automation Level | Fully Automated |
| Temperature Range | 10 °C to 50 °C |
| Temperature Resolution | 0.0002 °C |
| Precision | ±0.1 cal |
| Relative Standard Deviation | 0.4% (ΔT = 1.5–5 °C), 1.0% (ΔT < 0.5 °C or >6 °C) |
| Heat Capacity Equivalent | 100–145 cal/°C |
| Sample Volume (Solute) | 20 mL |
| Solvent Volume | 90–120 mL |
| Configuration | Dual-Wall Compensation Jacket with Dewar Inner Vessel |
| Connectivity | RS-232, Ethernet (LAN), Analog Output (Real-Time Plot on LCD), Printer & PC Interface |