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Water Reactive Gas Evolution Tester
This instrument is designed to determine the gas volume and gas evolution rate from substances upon reaction with water, accurately classifying the hazard characteristics of substances which emit flammable gases when in contact with water and corresponding Packaging Group by quantifying gas evolution characteristics. Suitable for various substances reactive with water, it provides critical data support for classification of dangerous goods for transport, reactivity identification of hazardous waste, and chemical safety assessment.
Test Parameters
Gas Volume upon Water Contact, Gas Evolution Rate
Application
Chemicals, Environmental Protection, Pesticides
Features
Specifications
Applications
Videos
Download
Q&A
Standards
Features
Pressure-balancing gas evolution measurement integrated with high-precision pressure measurement and precision motion control, enabling effective gas collection upon water contact and accurate calculation of gas evolution rate and total gas volume.
Simultaneously displays maximum minute-based and hour-based release rates, as well as collected gas volume, with 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 heat transfer for both heating and cooling to maintain constant test chamber temperature.
Well-sealed gas lines with excellent resistance to acid and alkali corrosion.
Automatic purging of gas lines for rapid removal of residual gas
Equipped with a 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, standing, 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 autosaving of raw data in the background.
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
Standards: 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 |
| Water Addition 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 Evolution Rate Range | 0–100 L/min/kg |
| Gas Volume Sampling Interval | 1 s |
| Gas Evolution 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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Videos
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Download
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Q&A
What does a water reactive gas evolution test measure?
It measures the volume and rate of gas released when a substance reacts with water under controlled conditions.
Why is water reactive gas testing important?
This test determines whether a substance can emit flammable gases when in contact with water, which is critical for hazardous material classification and transport safety.
What types of materials can be tested?
The instrument is suitable for substances that react with water and release gases, including chemicals, pesticides, and hazardous waste materials.
What parameters are measured during the test?
The tester measures gas volume upon water contact and the rate of gas evolution over time.
What standards does this tester comply with?
The instrument supports testing according to UN Test N.5: Substances Which Emit Flammable Gases When in Contact with Water, along with several national testing standards.
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