BS476-7 Surface radiant panel flame spread tester

Product Introduce

Our state-of-the-art BS 476-7 Surface Flame Spread Tester, compliant with the latest BS 476-7:1997 standard, is designed to evaluate the flame spread characteristics of building materials, such as wall and ceiling linings, coatings, and composite panels. Featuring an advanced 850 mm × 850 mm radiant panel delivering up to 80 kW/m², precise water-cooled sample holders, and a PLC-controlled system with real-time heat flux monitoring, our machine ensures accurate and repeatable testing for Class 1 to Class 4 classifications. Ideal for manufacturers and certification labs, it supports a wide range of products, from paints to decorative laminates, meeting stringent fire safety requirements in regions like the UK and Hong Kong.

Standard

BS 476-7

Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products

Range of test product

Materials for exposed wall and ceiling surfaces:

Single materials (e.g. paint, wallpaper, panels, boards).
Composite materials (e.g. laminates, sandwich panels).
Components (e.g. decorative linings, cladding systems).

Specific product types:
Interior wall and ceiling linings: e.g. gypsum board, fiberboard, wood, PVC panels, metal cladding.
Surface coatings: paint, fire retardant coatings, decorative coatings.
Decorative materials: wallpaper, textile coverings, films.
Composite structures: e.g. combinations of insulation materials and finishing layers (exposed surfaces to be tested)

Main prameter

1.The frame structure is made of stainless steel; beautiful and corrosion resistant;

2. The device has a igniter, electronic ignition, automatic flameout safety monitoring device;

3. Stainless steel exhaust pipe with removable parts for easy cleaning of thermocouples;

4. Tube type torch, stainless steel: 3.0mm inner diameter, 6.4mm outer diameter;

5. The torch is placed 28 ± 2mm above the exposed surface of the sample, and a flame is applied 6mm above the bottom surface of the exposed surface;

6. The contact height between the flame and the sample is 75mm ~ 100mm;

7. Sample size 885mm x 270mm;

8. The radiant panel is installed on the frame and 1250mm high from the ground.

9, BS476-7 standard requires a sample device; 90 degrees with the radiation plate;

10. The radiation device is: the size of the radiation plate is 850mmx850mm; it is composed of porous refractory blocks. However, the gas mixture burns fully without burning on its surface;

11. The sample fixture is composed of a water-cooled steel frame and a water-cooled panel chuck. The temperature of the water passing through the sample fixture must not exceed 35 ° C at the exit of the fixture;

12. Cooling water flow rate is 12L / min;

13. Gas flow rate is 1500 ± 200ml / min;

14. The sample tooling can rotate with the central axis, so that the test surface and the radiation plate are at different angles; the position to be tested and the test position can be adjusted flexibly;

15, automatic power output control, according to the test time, automatically adjust the output power;

16. The computer automatically processes the data and prints the test report;

Control system

1. Independent electrical control cabinet;
2. Standard control cabinet, computer + Labview intelligent control system;
3. Intelligent system test and easy operation;
4.Imported gas flow meter for precise control of gas flow;
5, automatic radiation dose calibration, automatic control of experimental radiation dose;
6. The experimental data is automatically saved and can be printed freely;
7. Equipped with brand computer;