Water Reactive Gas Evolution Tester
This instrument is designed to determine the gas volume and rate of gas evolved from substances upon reaction with water, accurately classifying water-reactive flammable hazards and corresponding packaging groups by quantifying gas evolution behavior. Applicable to various water-reactive substances, it provides critical data support for dangerous goods transport classification, reactivity identification of hazardous waste, and chemical safety assessment.
Test Parameters
Gas Volume upon Water Contact, Rate of Gas Evolution
Application
Chemicals, Environmental Protection, Pesticides
Features
Specifications
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Features
Adopts pressure-based gas evolution measurement combined with high-precision pressure detection and precision motion control to effectively collect gas released upon water contact, accurately calculating the release rate and gas volume
Simultaneously displays maximum release rates per minute and per hour, as well as total evolved gas volume, with real-time rate curve plotting
Traceable calibration capability with calibration tools to ensure testing accuracy
Automatic sample immersion in a sealed environment prevents gas leakage during water injection and sample addition
Constant-temperature circulation bath with specially designed heat transfer plates enables both heating and cooling conduction to maintain stable test chamber temperature
Gas-tight tubing with excellent resistance to acid and alkali corrosion
Automatic purging of gas lines for rapid removal of residual gas
Integrated gas collection bag for automatic capture of released gas, enabling subsequent composition analysis or combustion testing
Observation window with built-in illumination for convenient monitoring of reaction status
Configurable accessories for water immersion, retention, and dripping tests
Fully automated test process requiring no manual intervention; supports parameter setting, data storage, and report viewing; real-time test status display with automatic background saving of raw data
7-inch LCD touchscreen with intelligent Chinese input method for simple and convenient operation
Embedded processor with Windows CE operating system for fast, stable, and reliable operation
UN Test N5: Test Method for Substances Which Emit Flammable Gases When in Contact with Water, GB 30000.13-2013, GB/T 21619-2008, GB 19521.4-2004, GA/T 536.4-2005, GB 5085.5-2007, NY/T 1860.29-2016
Specifications
| Operating Environment | -5–45 °C, <95% RH |
| Test Chamber Temperature Control Range | 10–35 °C (default: 20 °C, software-adjustable) |
| Temperature Stability | ±0.5 °C |
| Test Water Volume | 400 mL; automatic sample immersion |
| Sample Cup Volume | 20 mL |
| Gas Volume Measurement Accuracy | ±0.5 mL |
| Gas Collection Volume | 0–800 mL |
| Gas Detection Resolution | 0.01 mL |
| Gas Release Rate Range | 0–100 L/min/kg |
| Gas Volume Sampling Interval | 1 s |
| Gas Release Rate Calculation Interval | 1 min–1 h (software-adjustable) |
| Timing Range | 0–240 h |
| Water Injection Volume | 300 mL |
| Water Injection Accuracy | ≤±1 mL |
| Pressure Measurement Range | -5–5 kPa |
| Pressure Measurement Accuracy | ±0.1% FS |
| Mass Measurement Range | 0–3100 g (optional) |
| Mass Measurement Accuracy: | ±0.01 g |
| Water Bath Temperature: | 20±0.5 °C (adjustable) |
Applications
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