Building Material Flammability Test Apparatus

What is the Building Material Flammability Test Apparatus?

The Building Material Flammability Test Apparatus is a testing device used to assess the flammability characteristics of construction materials. It evaluates how easily materials ignite, how quickly flames spread, and how much heat and smoke are released upon combustion. This apparatus exposes samples to controlled flame or heat sources to simulate real fire conditions and records the material's reaction.

Compliance：ISO 11925-2:2020 "Reaction to fire tests - Ignitability of products subjected to direct impingement of flame Part 2: Single-flame source test"

Main parameters:

1.Complete set of configuration: the testing machine is composed of control box, combustion box body, burner, solenoid valve, signal control and sample holder;

2.Test chamber:

2.1 Material: It is made of high-quality steel plate with electrostatic spraying and high-temperature baking paint;

2.2 There are observation windows on the front and side;

2.3 The square box part at the bottom of the box is provided with free air circulation. The square box is made of stainless steel mesh with a thickness of 1.5mm, the height of the box is 50mm, and the grid size is 25mm*25mm;

2.4 Measuring the wind speed of the flue in the box: use an anemometer to measure, the air flow speed is (0.7±0.1) m/s,

2.5 Anemometer: range 0.01m/s~30.0m/s, accuracy ±0.1m/s;

3.Burner:

3.1 Composition: Composed of burner body, flame stabilizer and regulating valve;

3.2 Burner specifications: It consists of a nozzle with a diameter of ￠0.17mm and a regulating valve, and four air suction holes with a diameter of ￠4mm;

3.3 Flame height: 20±1mm;

3.3.4 Burner inclination: 45°;

3.5 Ignition system: manual ignition, equipped with an igniter;

3.6 Regulating valve: adjust the gas pressure at (10~50) kpa;

3.7Gas: gas purity > 95% propane gas; (customer-provided);

3.8Test clip: It consists of two U-shaped stainless steel frames, 15mm wide and (5±1)mm thick;

3.8 Hanging rod: fixed on the vertical column (support) to keep the sample holder hanging vertically so that the burner flame can act on the sample;

3.9 Burning time: 0~99 minutes and 99 seconds can be set, accuracy ≤1s/h;

3.10Sustained burning time: 0~99 minutes and 99 seconds can be set, accuracy ≤1s/h;

3.11 Flame inspection device:

3.12 One piece of flame height measuring gauge;

3.13 One ignition locator for edge ignition;

3.14 One ignition locator for surface ignition.

3.15 Filter paper and collection tray:

3.16 Filter paper: the density is 60kg/m²;

3.17 Collection tray: 100mm*50mm, 10mm deep. Made of aluminum foil;

3.18 Power supply voltage: AC220V±10%, 50Hz;

4. Equipment structure:

4.1 The structure of this machine is composed of combustion box and control box.

4.2 Combustion chamber size: L700*W400*H810 (mm) conforms to ISO11925-2:2020 figure 1-combustion chamber;

4.3 Chassis material: It is made of high-quality steel plate with electrostatic spraying and high-temperature baking paint;

4.4 Blowtorch: self-made by our company, brass material, in full compliance with GB/T8626 standard requirements.

4.5 Other mechanical parts are made of high-quality stainless steel.

5. Conditions of use:

5.1 The ground is flat, well ventilated, free of flammable, explosive, corrosive gases and dust.

5.2 There is no strong electromagnetic radiation source nearby.

5.3 Appropriate maintenance space should be left around the equipment.

5.4 Temperature: 25℃～35℃.

5.5 AC220V/50HZ.

5.6 Allowable voltage fluctuation range: 220V±10%.

5.7 Allowable fluctuation range of frequency: 50Hz±1%.

5.8 The user is required to configure a gas source of corresponding capacity and a power supply for the equipment at the installation site, and the power supply must be independent and dedicated to the equipment