Building Materials Flammability Tester Critical Radiant Flux Flammability Testing Equipment

Critical Radiant Flux Flammability Testing Equipment For Flooring Panel

SL-FL05 Radiant Flooring Panel Test Apparatus

To measure the critical radiant flux of flame stop spreading horizontally, and smoke density of flooring material during test.

Product Overview

The SL‑FL05 Radiant Flooring Panel Test Apparatus is a reaction‑to‑fire test system designed for flooring materials, measuring critical radiant flux and flame spread behaviour under a controlled radiant heat source. It is used to evaluate floor coverings such as carpets, wood, vinyl, and composites for fire safety classification, providing essential data on ignition resistance and flame propagation.

Features
1. All structural components are made of stainless steel, appearance,and corrosion resistance;
2. The radiation source is a porous ceramic heat radiating plate of 300mm*450mm, and tilted 30 °;
3. The calorimeter is imported from United States , range 50kW/m2;
4. The igniters diameter is 0.7mm, 19/EA, is located at the bottom of the center line of each 60°;
5. The standard plate is made of calcium silicate without coating layer,which is size of 1050*250mm and thickness is 20±1mm ,density is 850 ± 100kg/m³;
6. Small stainless steel auxiliary ignition burner ignited sample.
7. Inlet flow control valve, precise control of propane flow;
8. Equipped with air blower providing air, mixed gas through the venturi mixing gas

Standards
• ISO 9239-1: Flooring fire reaction test - Part 1: Combustion performance of flooring materials tested by radiant heat
• ISO 9239-2: Flooring fire reaction test - Part 2: Testing flame spread status under the heat flux is 25kW/m2
• ASTM E 648: Critical Radiant Flux of Floor standard test - covering system uses radiant heat energy
• ASTM E 970: Using a Radiant Heat Energy Source, test insulation floor insulation standard test for Critical Radiant Flux Using a Radiant Heat Energy
• NFPA 253: Standard Test Method for using radiant heat energy, test plates overlay system Critical Radiant Flux

Technical parameters

• Gas supply & combustion – Blower provides continuous gas; compressor supplies intermittent air. Gas control panel: needle valve for flame height, MFC for flux with digital display. Inverter‑controlled blower and Venturi mixer ensure stable air/gas ratio and flame.
• Radiant plate & burner – Heat-resistant honeycomb ceramic plate (300×450 mm, 30° inclined). T‑shaped porous burner with auto‑ignition and automatic specimen push system.
• Calibration – Porous calibration apparatus adjusts radiant output by upward, left, or right movement.
• Chamber & exhaust – Inner chamber lined with heat‑ and corrosion‑resistant aluminium silicate plates. Stainless steel ventilation hood on top. Chimney has one thermocouple; another thermocouple inside chamber – both monitored by software.
• Measurement & control – Heat flux meter with portable water cooling (no external running water). IR radiometer displays plate temperature. Optical system with 2900±100 K light source and advanced signal receiver. Integrated 19″ PC with LabVIEW software for data acquisition and control.
• Optional – Smoke density testing system available on request.

Application

Material Testing: Suitable for various floor coverings like textile carpets, cork, wood, rubber, plastic flooring, and floor coating materials

Construction & Building: Testing flame spread and combustion characteristics of flooring materials used in homes, offices, and public spaces

Transportation: Evaluating fire performance of flooring in railways, aviation, and shipping

Insulation Materials: Can also measure the critical radiation of attic floor cellulose insulation

Compliance & Classification: Provides essential data for certification and for fire safety classifications like the Euroclass system (A2FL, BFL, CFL, DFL)

Frequently Asked Questions

Q1: What materials can this test, and which standards does it meet?

A1: It tests almost all floor coverings – textile carpets, cork, wood, rubber, vinyl, and sprayed coatings. It fully complies with ISO 9239‑1/‑2, ASTM E648, ASTM E970, NFPA 253, and GB/T 11785‑2005, so your results are accepted worldwide.

Q2: What does it actually measure, and what are the key specs?

A2: It measures critical radiant flux – the minimum heat level needed to sustain flame spread – giving you a clear fire‑risk rating. Key specs: 300×450 mm ceramic radiant plate (up to ~900 °C), heat flux meter (0‑15 kW/m², ±0.2 kW/m²), and exhaust flow 2.5 m/s.

Q3: How accurate and repeatable are the results?

A3: Very. The gas supply uses a mass flow controller and a Venturi mixer with inverter‑controlled blower for a steady air‑fuel ratio. You can fine‑tune output with a 3‑way calibration device, and an IR radiometer gives real‑time plate temperature.

Q4: Is it easy to operate?

A4: Absolutely. Auto‑ignition and an automatic specimen pusher remove guesswork. The whole system runs on a 19‑inch PC with LabVIEW software – set parameters, start, and let it run.

Q5: What are the installation and maintenance requirements?

A5: Install in a draft‑free room at 23 ± 5 °C and 50 ± 20 % RH, using propane gas. Maintenance: regularly clean the radiant plate and check output with a calibrated radiometer to keep accuracy.

Q6: Are there any optional extras?

A6: Yes – you can add a smoke density testing module to measure smoke production, giving a more complete fire‑safety profile without a separate machine.

Aftersales service and technical support

After-sales service and technical support

Oneyear aftersales support, lifetime technical assistance

Equipment installation and calibration

Calibration services

Support for the development of testing methods

Technical training

Contact information

To obtain the complete technical specifications, a quote, or to schedule a demonstration, please contact our sales team or authorized dealers. We will provide you with professional and prompt technical support and services.