* applicable industry: the test machine is a vertical or horizontal combustion test, and according to the specification of ul-94 on plastic materials, insulation materials..The flame resistance of the test piece was evaluated.

* applicable standard :UL 94:2006/IEC60695/GB 5169/GB2408/ ISO 9772:2001/ iso10093-1998 /GB/t8322-2008

I. test box body:

1. High anti-corrosion steel seal, high anti-corrosion paint spraying, no air circulation during the test;

2. Toughened glass observation door is provided on the front of the box body to facilitate observation of the test;

3. The operation panel is located on the right side of the observation door to facilitate the observation of the test;

4. Internal volume is greater than or equal to 4.0m3.

Ii. Temperature measurement system

1. Thermal sensor (electrolytic copper block 10.0 + / -0.05g and thermocouple);

2. Model K thermocouple with a 0.5mm diameter stainless steel tube;

3, intelligent PID temperature controller and match the K type thermocouple, the readings of up to 1000 ℃;

4. Timer: 0 ~ 99H99/99M99/99S99 can be set arbitrarily, with the minimum resolution up to 0.01S;

5, test flames rising from 100 ℃ + 2 ℃ to 100 ℃ + 3 ℃ when need time for 54 s + 2 s.

Test device and test fixture:

1. Main fixtures: test bracket and burner;

2. Test bracket: made of SUS304# stainless steel, dividing bracket and vertical bracket;

3. Combustion blowtorch: meet ASTM D 5025-05, standard power: 500W;

Diameter of nozzle: 0.90 + 0.03mm, length of nozzle: 1.60 + 0.05mm, inner diameter of nozzle: 9.5mm.

Height of nozzle from air inlet: 100mm + / - 10mm.

Iv. Gas and gas flow control system:

1. Gas: at least 98% methane, prepared by the customer;

2. Gas control system:

(1) mainly includes flow meter, pressure reducing valve and pressure difference meter;

(2) flowmeter range: 1000ml/min;

(3) combustion pressure reducing valve: 1;

(4) u-type differential pressure gauge: 1.

V. smoke exhaust system

1. The low-noise industrial fan can exhaust rapidly, and the test personnel can't have complete contact with the gas, which is harmless to the body.