The Baoruitong PDCL-01 Radiant Heat Flux Test Apparatus for Floor Coverings is a high-precision, computerized laboratory testing system designed to evaluate the critical radiant flux, burning behaviour, and flame spread of various flooring materials and underlays under controlled radiant heat exposure. Engineered strictly according to ISO 9239-1, ASTM E648, EN 13501-1 (Euroclass A2fl–Dfl), NFPA 253, and national standard GB/T 11785-2005, this system provides essential flammability data for building safety certification.
Featuring a heavy-duty CNC-machined 304 stainless steel combustion chamber (L1420 × W1200 × H2300 mm), a high-accuracy 0–15 kW/m² heat flux meter, automated exhaust velocity regulation (2.5 ± 0.2 m/s), and precision pilot flame positioning (60–120 mm), this advanced Flooring Critical Radiant Flux Apparatus ensures repeatable testing for carpet mills, resilient flooring manufacturers, wood/laminate producers, and certified fire safety testing laboratories.
Flooring Radiant Heat Flux Tester Compliance & Standards
This radiant panel flammability tester enables accredited testing laboratories to conduct certified Critical Radiant Flux (CRF) and reaction-to-fire evaluations across global standards:
| Standard Code |
Standard Title & Scope |
Primary Testing Application |
| ISO 9239-1 |
Reaction to fire tests for floorings — Part 1: Determination of the burning behaviour using a radiant heat source |
International benchmark testing for critical radiant flux determination on all flooring systems and underlays |
| ASTM E648 & NFPA 253 |
Standard test method for critical radiant flux of floor-covering systems using a radiant heat energy source |
North American commercial building code compliance testing (Class I and Class II flooring requirements) |
| EN 13501-1 (Euroclass) |
Fire classification of construction products and building elements — Flooring reaction to fire |
Mandatory CE marking classification testing for European flooring materials (Euroclasses A2fl, Bfl, Cfl, Dfl) |
| GB/T 11785-2005 |
Reaction to fire tests for floorings — Determination of the burning behaviour using a radiant heat source |
Mandatory Chinese national standard for critical radiant flux evaluation of textile, wood, and plastic floorings |
Technological Features of Baoruitong PDCL-01 Radiant Heat Flux Apparatus
- Premium Stainless Steel Construction: Built with high-grade 304 stainless steel plates formed by precision CNC machining, featuring corrosion resistance and a modern rounded aesthetic.
- Precision Heat Flux Calibration System: Equipped with a 0–15 kW/m² heat flux meter and a hot-bulb anemometer (accuracy ±0.1 m/s) to ensure accurate thermal gradient profiling along the specimen surface.
- Controlled Airflow Dynamics: Automated exhaust blower system maintains chamber exhaust air velocity strictly within > (2.5 ± 0.2) m/s with a tight temperature deviation control (< ±10 °C).
- In-House Custom 304 SS Burner: Manufactured strictly according to GB/T 11785 / ISO 9239 specifications, delivering adjustable pilot flame heights from 60 mm to 120 mm.
- Multi-Gas Compatibility: Operates seamlessly with industrial methane, propane, or liquefied petroleum gas (LPG) with purity ≥ 95%.
Technical Specifications of Baoruitong PDCL-01 Floor Flammability Machine
| Governing Test Standards |
ISO 9239-1, ASTM E648, EN ISO 9239-1, NFPA 253, GB/T 11785-2005 |
| Combustion Chamber Dimensions |
L1420 mm × W1200 mm × H2300 mm |
| Chamber & Cabinet Material |
High-grade 304 stainless steel & thickened electroplated A3 anti-corrosion steel |
| Heat Flux Meter Range |
0 to 15 kW/m² |
| Exhaust Air Velocity |
> (2.5 ± 0.2) m/s; Anemometer accuracy ±0.1 m/s |
| Pilot Flame Height Range |
60 mm to 120 mm (Adjustable) |
| Combustible Gas Options |
Methane, propane, or LPG (Purity ≥ 95%) |
| Operating Environment & Power |
Room temp: 15 °C to 25 °C; Relative Humidity ≤ 75%; AC 220 V ± 10 V, 50 Hz |
System Architecture & Testing Workflow of PDCL-01 Flooring Tester
Standardized Testing Workflow:
- Prepare flooring specimens (including intended substrate and underlay) and condition at 23 °C ± 2 °C and 50% ± 5% RH.
- Calibrate the radiant panel to establish the standardized thermal radiation gradient (11 kW/m² at the hot end down to 1 kW/m² at the cool end).
- Mount the specimen horizontally inside the combustion chamber beneath the inclined radiant panel.
- Ignite the pilot gas burner (flame height 60–120 mm) and apply to the hotter end of the specimen.
- Monitor flame spread along the length of the flooring and determine the Critical Radiant Flux (CRF in kW/m²) at the point of flame extinction.
Target Customer Applications:
- Textile carpet, rug, and underlay padding manufacturers.
- Hardwood, engineered timber, LVT, vinyl, and laminate flooring factories.
- Third-party fire safety inspection centers and ISO 17025 testing laboratories.
Baoruitong PDCL-01 Radiant Heat Flux Test Apparatus FAQ
Q1: What is Critical Radiant Flux (CRF) in flooring testing?
A: Critical Radiant Flux (expressed in kW/m²) is the level of radiant heat energy incident on the flooring surface at the point where the flame ceases to advance. A higher CRF value indicates superior fire resistance.
Q2: Does this machine satisfy North American ASTM E648 testing requirements?
A: Yes. The chamber dimensions, radiant panel angle, pilot burner geometry, gas supply specifications, and heat flux measurement capabilities meet ASTM E648 and NFPA 253 criteria.
Q3: Why is substrate selection important during testing?
A: Changes in underlay, adhesive, or backing material significantly alter heat absorption and flame spread. The PDCL-01 tests the complete flooring system assembly for realistic fire performance evaluation.
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