Flooring Radiant Panel (ISO 9239 Compliant)

The Flooring Radiant Panel Test Apparatus is designed to determine the critical radiant flux of horizontally mounted floor covering systems under a controlled radiant heat environment with a flaming ignition source.

Test Chamber

• Constructed of stainless steel with a front-opening door for convenient cleaning and specimen replacement.
• Inner lining consists of a 13 mm thick calcium silicate panel.
• Equipped with a fireproof observation glass (110 mm × 1100 mm), enabling continuous observation of the specimen along its full length.
• Exterior reinforced with a thick stainless steel sheet for durability.
• Below the observation window, a tightly sealed door allows smooth movement of the specimen platform.
• Steel rulers with 50 mm and 10 mm graduations are mounted on both sides of the specimen fixture for flame spread measurement.

Specimen Holder & Platform

• Sliding specimen platform, guided by heat-resistant iron rails for long service life.
• Total air circulation area: 0.23 m², evenly distributed along both long sides of the specimen.
• Specimen holder constructed from 2.0 mm thick, L-shaped, heat-resistant stainless steel.
• Specimen opening: 200 mm × 1015 mm, firmly secured to the platform with two bolts at each end.

Radiation Heat Source

• Porous ceramic refractory panel in a metal frame, with radiating surface 300 mm × 450 mm.
• Mounted at an angle of 30° ± 1° from horizontal.
• Capable of sustaining >900 °C with a stable, luminous, flame-free radiant output.

Ignition System

• T-shaped stainless steel porous burner:
  • Inner Ø: 6 mm, Outer Ø: 10 mm.
  • 19 holes (Ø 0.7 mm) along centerline.
  • 16 holes (Ø 0.7 mm) at 60° below centerline.
• Cylinder push mechanism applies the pilot flame automatically at a programmed time.

Airflow & Exhaust

• Anemometer: Range 0–10 m/s, accuracy ±0.1 m/s, positioned at 250 ± 10 mm above exhaust chimney centerline.
• Mass flow controller with digital display for flow regulation.
• Frequency converter for blower air volume regulation, with integrated tempering valve ensuring safe, temper-free operation.
• Independent blower with Venturi mixing system for precise air-gas mixture.

Measurement & Calibration

• Infrared Pyrometer:
  • Range: 0–800 °C (blackbody temperature).
  • Positioned 1.4 m from radiation panel, measuring 250 mm diameter circular area at center.
  • Mounted on universal adjustable foundation.
• Water-cooled Heat Flux Meter:
  • Range: 0–20 kW/m².
  • Built-in cooling, no external water required, zero maintenance.
• Calibration Plate: Stainless steel, 250 mm × 1050 mm, with Ø 26 mm holes at standard positions (110, 210… 910 mm).
• Mobile lifting calibration mode: Heat flux meter can be shifted for convenient calibration, with software plotting standard heat flux curve.

Smoke & Optical System

• Neutral filter: Optical density range 0.05–2.0 (transmittance 89%–1%).
• Light system: 2900 ± 100 K incandescent lamp with silicon photodiode receiver.
• Shutter: Computer-controlled automatic open/close for 0% and 100% calibration.
• Smoke density system: Records transmission curves in real time.

Temperature & Timing

• K-type insulated thermocouple (0–1000 °C) installed in chimney, with software-based real-time display.
• Automatic timer: 1-second accuracy, error <1 second per hour.

Software & Data Acquisition

• Integrated DAQ software records and displays:
  • Heat radiation flux,
  • Smoke density and transmission curves,
  • Air velocity,
  • Flame spread distance/time,
  • Other test parameters.
• Flame spread recording: Footswitch-enabled, synchronized with automatic computer recording.
• 15″ industrial touch-screen computer for complete monitoring and control of the test.