Purpose and Standards
1. This instrument is used to test the flammable concentration range of gases in air, applicable to the vast majority of pure flammable gases and mixtures composed of several pure flammable gases in proportion.
2. The gas hazard characteristics tester complies with the following standards:
· GB 1952.3-2004 "Safety Code for Inspection of Hazardous Properties for Dangerous Goods of Flammable Gas";
· ISO 10156:1996 "Determination of Fire Potential and Oxidizing Ability of Gases and Gas Mixtures";
· GB 5085.4 "Identification Standards for Hazardous Wastes - Identification for Ignitability" 4.3 Flammable Gas Dangerous Goods Hazard;
· NY/T 1860 "Guidelines for Testing Physical and Chemical Properties of Pesticides" Part 25: Gas Flammability;
· And national standards or industry standards equivalent or identical to the above standards.
Technical Parameters
1. Working environment: -5℃ to 45℃, relative humidity <95%RH;
2. Ultimate vacuum: ≤20Pa;
3. Leak rate: ≤5Pa/min;
4. Proportioning pressure measurement range: 0～400kPa, accuracy: ≤±0.05%F·S;
5. Stirring speed: 1000rpm;
6. Combustion detection method: thermocouple detection/high-speed camera;
7. Flame detection response time: ≤1ms;
8. Combustion speed detection range: <200m/s;
9. Flame temperature measurement range: -40℃～800℃, accuracy: ±0.004|t|℃;
10. Timing accuracy: ±0.1ms;
11. Reaction tube dimensions: length 300mm, inner diameter 50mm, wall thickness 5mm;
12. Reaction tube pressure resistance: 2Mpa;
13. Safety valve opening pressure: 200kPa;
14. Ignition system: single spark energy 10J,
15. Instrument dimensions (L×W×H): 750mm×590mm×635mm.
Functional Features
1. Adopts high borosilicate glass reaction tube, resistant to high temperature, high light transmittance, pressure resistance 2Mpa;
2. Uses partial pressure method for proportioning, static mixing method to ensure uniform mixing of test gas and compressed air;
3. Inlet pipeline equipped with drying filter to ensure test gas is dry;
4. Provides gas sampling interface for convenient sampling and analysis of test gas;
5. Equipped with gas cleaning system, automatically completes waste gas replacement after test;
6. Integrated temperature and high-speed camera dual detection technology to ensure accurate and reliable test results;
7. Built-in flame combustion criterion, automatically judges flame flashback;
8. Configured with multiple safety protection measures, high-pressure resistant reaction tube, wire-embedded float glass observation window, metal body design, flame arrest capability meets EN730-1 and ISO5175 standards;
9. Supports three ignition methods: remote control ignition, instrument-side delayed ignition, and wireless network remote ignition to ensure safety of test personnel;
10. Red one-key emergency stop button, can directly cut off power in unexpected situations to ensure safety of test personnel;
11. Instrument embedded with industrial PC motherboard, 10.1-inch capacitive touch screen, pre-installed professional operating software;
12. Supports wireless networking, a single computer can remotely control multiple instruments via wireless network, and achieve centralized data storage and management.
