GB/T 20284 , EN ISO13823 Construction Materials Single Burning Item Fire Test Chamber

GB/T 20284, EN ISO13823 Construction Materials Single Burning Item Fire Testing Equipment
 
 
Description:
 

The single burning item tester (SBI) is used to determine the performance of building materials (excluding flooring materials) under the condition of single combustion heat attack.

The sample is placed on a moving cart under the exhaust system, and the combustion reaction of the specimen is automatically visible. Mechanical properties are evaluated by calculating the heat release rate (H.R.R) and the smoke release rate (S.R.R), while other physical properties are evaluated by visual observation.

SBI's Fire Growth Rate Index (FIGRA) is the most representative measure factor. In addition, representative measurement factors are oxygen consumption, CO, CO2 generation and smoke growth rate index (SMOGRA). The maximum heat release rate can reach 1MW.

Systems:

1. Ignition system

10kV spark ignition, equipped with a safety ceasefire device. The igniter is automatically positioned by a lever connected to the closing mechanism

Imported mass flow meter controls input flow.

With flame automatic alarm device, safe and reliable.

2. Gas sampling system, including particulate filter, cold trap, suction pump, drying cylinder, flow controller

3. measuring system

Paramagnetic analyzer, O2 measurement range 0-25%, linear deviation <1%.

Infrared CO2 analyzer; Measuring range: 0-2 / 10%, linear deviation: <± 1%.

Measurement of smoke density by laser system.

Computer control system

Embedded integrated 10.2 "touch screen

4. Control parameter setting and display; test status and fault display, query.

5. Data acquisition and preservation; screen monitoring, real-time temperature curve, real-time CO2 / O2 data curve display; historical curve and data query.

6. Data USB export. History curve and data query, print.

7. It can independently control the machine to complete the test.

8. There are audible alarm and alarm accident display function.

9. Control box with USB / RS232 serial port, can be an external desktop / notebook computer operation control.

10. Programmable (PLC) control system

· Automatic ignition, ignition failure detection protection.

· Automatic Control and Display of Propane Gas Flow.

· PLC + inverter to implement automatic control and display of exhaust gas flow.

· Automatic measurement and calculation of material combustion: heat release rate (H.R.R), smoke growth index (SPR), oxygen consumption (O2), CO2 generation.

Standards:

GB/T 20284-2006 Building products-single burning item

BS EN 13823 Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item

Gas Sampling

Control Principle

Gas Control Cabinet