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Reaction to fire test for floorings ISO 9239-1 VS ISO 9293-2

The ISO 9239 Radiant Flooring Panel test is the cornerstone of the flooring materials reaction to fire tests in the Euro class system. The test measures the spread of flame of the sample, under thermal exposure, using a radiant heat ignition source.

It is suitable for testing with paving materials that are placed in a small flame and placed horizontally and exposed to a slanted heat radiation field.

Such as: textile carpets, cork boards, wood boards, rubber sheets and plastic floor and floor coating materials. The device may reflect the burning properties of the flooring material including the substrate used, the backing material, the underlying material or other changes in the flooring material may affect the test results, which are used for testing and description under laboratory control conditions, The burning properties of the ground material against the thermal reaction of the fire.

 The Radiant Flooring Panel Test Apparatus meets the following test methods:

ISO 9239-1:Floor coverings – Fire reaction test – Part 1: Determination of flaming performance using radiant heat sources;

ASTM E648:The floor covering is subjected to a critical thermal radiation test using a thermal radiation source method;

GB/T 11785:Determination of the burning properties of flooring materials – radiant heat source method.


EN ISO 9239-1 Flame retardant fire test for flooring materials (flooring) – Specific material applications

-Wooden floors

-Plastic wood flooring

-Rubber flooring


-Aluminium honeycomb panels


ISO 9239-1 VS ISO 9293-2

ISO 9239-1 Determination of the burning behavior using a radiant heat source

The test specimen is placed in a horizontal position below a gas-fired radiant panel inclined at 30° where it is exposed to a defined heat flux. A pilot flame is applied to the hotter end of the specimen. Following ignition, any flame front which develops is noted and a record is made of the progression of the flame front horizontally along the length of the specimen in terms of the time it takes to spread to defined distances. Smoke production during the test is recorded as light transmission in the exhaust stack. One specimen is tested in one direction (e.g. production direction) and one specimen in the direction perpendicular to the first specimen. The test which yields the worst results is repeated twice in that direction.

ISO 9239-2 Determination of flame spread at a heat flux level of 25 kW/m2


ISO 9239-1




 Heat flux meter


Schmidt-Boelter type, range 0 to 50 kW/m2, calibrated from 1 kW/m2 to 30 kW/m2,

Accuracy: <± 3% of the measured value

Schmidt-Boelter type, range 0 to 50 kW/m2, calibrated from 1 kW/m2 to 30 kW/m2, Accuracy: <= 3% of the measured value

  Heat flux Level


25 kw/2

The surface material of the radiant panel

400-600 ℃, the accuracy of ± 0.5 ℃;

> 900°C

Ventilation control panels

according to Figure 6 of ISO 9239-1

according to Figure 7 of ISO 9239-2


 Same   Same




Post time: Jan-07-2024
industrial sewing machine