BS 476-6 Fire propagation test machine

Product introduce

BS476-6 Flame Spread Index Tester is a professional device used to evaluate the fire resistance of building materials. It is mainly tested according to British Standard BS 476-6 and revised version A1:2009. The instrument simulates the fire source through a tubular blowtorch and accurately measures the flame spread index (I value) to determine the flame retardant level of the material. During the test, the power of the blowtorch (530J/s) must be strictly controlled and a K-type thermocouple must be used to record the temperature change to ensure that the data is consistent with the standard curve. Its test range covers building interior products such as wall materials, ceiling linings, fire-resistant wood and textiles. In the result classification, materials with an I value of ≤12 can be classified as Class 0 flame retardant standards. The equipment is also associated with other standards in the BS 476 series (such as Part 7 surface spread test) to provide key data support for the fire safety of building materials.

Standard

BS 476-6:
The full name is "Fire Tests for Building Materials and Elements - Test Methods for Flame Propagation of Products", which defines the determination method and evaluation system of the flame spread index (I value).

BS 476-6 A1:2009:
A revision of the original standard, further clarifying the technical details of the flame spread performance test, including the heat output of the blowtorch, power regulation and temperature difference recording requirements.

Application

1. Building interior materials
Indoor wall materials (such as paint, wallpaper, decorative panels, etc.)
Ceiling lining materials (such as ceiling panels, fire-resistant gypsum boards, etc.)
Insulation materials (such as polyurethane soft foam, insulation cotton, etc.)

2. Fire-resistant materials
Wood treated with flame retardant impregnation 1
Non-combustible boards (such as calcium silicate boards, cement fiber boards, etc.)

3. Other building products
Fabrics (such as fire-resistant curtains, flame-retardant textiles, etc.)
Composite building materials (such as fire-resistant composite panels

Feature

1. Stainless steel box support frame;

2. Calcium silicate board combustion chamber;

3. Three sample holders, wrapped in stainless steel;

4. Two 1000W quartz radiators to provide thermal radiation to the sample;

5. T-type burner to provide open flame combustion for the sample;

6. Thermocouple continuously records the difference between the temperature in the chimney and the room temperature;

7. Automatic power output control, automatically adjust the output power according to the test time;

8. The computer automatically processes the data and can print the test report.