BS 476 non-combustibility test

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Whats/App: +86 156 1874 6768

Web: standard-groups.com

This machine is designed and manfacture according to ISO 1182 .Furnace temperature can quickly reach temperature equilibrium into the test program; temperature curve can print free.

Standards:

ISO 1182: building products --- in combustible fire reaction test

BS 476-4:Fire tests on building materials and structures - Part 4: Non-combustibility test for materials

BS 476-11:Fire tests on building materials and structures - Part 11: Method for assessment of the fire hazard of building products based upon the results of tests for ignitability, flame spread, heat release and smoke production

ASTM E 136: Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750°C

Features:

1. Intelligent test system with Patent design;

2. Stainless steel burner, beautiful and easy to clean;

3. The heating furnace size: Φ95 mm × Φ75 mm × 150 mm;

4. 3 mm × 0.2 m Ni 80% Cr 20% resistance band;

5. Air cover: Φ75 mm × 500 mm;

6. Thermocouple: insulated nickel-chromium - nickel - aluminum armored Φ1.5 mm ;

7. Equipment with the power controller;

8. The temperature balanced time at 750ºC is about 35min~40min;

9. Thermometers range: 0 ~ 1000 ºC ± 5%;

10. Equipped with mirror to see the internal of the furnace.

Parameters：

Item	Specification
Gas used - Methane flow rate	(35 ± 0.5) L/min, purity > 95%
Gas used - Air flow rate	(17 ± 0.2) L/min
Specimen size	4 specimens per test group
Thermocouple type	Nickel-chromium-nickel-silicon, wire diameter 0.5mm, outer diameter ≤ 3mm
Furnace wall temperature range	Room temperature to 100°C, ±1°C
Intake temperature range	0 to (50 ± 0.5)°C
Pressure difference range	0 to 30Pa, ±1Pa
Pressure difference measurement range	0-100Pa, accuracy 0.2%
Temperature recorder and thermostat	Multi-channel continuous temperature recording and curve display
Constant temperature	(23 ± 2)°C
Constant current	(10 ± 1) m³/min
Ambient temperature range	19 to 30°C
Power supply	380VAC 50HZ
Dimensions of combustion shaft furnace (outer)	1020mm x 1020mm x 3930mm
Dimensions of combustion shaft furnace (inner)	800mm x 800mm x 2000mm

Application:

The building materials non-combustibility test furnace is developed in accordance with the technical specifications and requirements stipulated in the national standard GB/T5464-2010. It is suitable for testing methods used to evaluate the combustion performance of building materials under specified laboratory conditions. It is applicable to testing the combustion performance classification of fire-resistant materials according to the GB8624 combustion performance classification of building materials.

Control System:

1. High degree of automation, test procedure safe and reliable, easy to operate;

2. To use of high-quality strip heater,furnace temperature was raised to 900 ºC;

3. PLC control system + SSR temperature control system extending the life of furnace;

4. PLC output signal to control the heating voltage is 0-110 VAC. Eliminate the influence of voltage fluctuation on temperature;

5. Temperature control: 750 ºC±2 ºC;Resolution:0.1ºC;

6. The samplies move up-down into the furnace automatically by motor;

7. 7 "touch screen for control parameter setting and display / test data acquisition and preservation / screen monitoring / real-time temperature curve shows / historical curve and data query;

8. With an audible alarm and alarm display functions accidents;

9. To equipped with printer, to print the temperature curve;

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