100W Helmet Burning Performance Testing Machine For Construction Engineering

Fire Safety Helmet Flame Retardant Performance Tester​

Basic introduction:

It is mainly applicable to the determination of flame retardant properties of safety helmet, engineering plastics and helmet with flame retardant requirements. It can be used in rubber industry, plastic industry, inspection department and scientific research institute.

Test method:

The safety helmet shall be placed correctly, the burning angle shall be tangent to the horizontal plane of the test point, and the flame shall form a 45 degree angle on the axis. The distance between the test area of the safety helmet and the end door of the flame jet head is 50 mm to 100 mm, and the action time is 10 s. during the test, the cap shell needs to burn under the flame for 5 s, and the cap shell shall not burn through.

Technical parameters:

1. Flame jet head: horizontal fuel nozzle with inner diameter of 10 mm;
2. Timer: indication error ± 1%, used to record afterburning time, - 0.01s;
3. Timer: the indication error is ± 1%. It is used to determine the time when the flame is applied to the safety helmet. It can set the burning time by itself. After the flame is applied, the Bunsen lamp can move away by itself;
4. Bracket: it can firmly clamp the helmet to ensure the stable position in the test, and can be moved to adjust the distance between the helmet and the flame jet head;
5. Fuel supply device: pressure control valve, gas volume control valve, gas storage tank device, which can ensure that the flame nozzle can stably eject 50 mm long blue flame
6. Combustion gas source: liquefied petroleum gas, purity more than 95% (provided by the user);
7. The inner diameter of Bunsen lamp is 10 mm ± 0.10 mm;

Test method:

1. The flame retardant performance tester of safety helmet should be tested in the fume hood;

2. The safety helmet after high-temperature impact test is clamped on the bracket according to the normal wearing direction, so that the side of the cap shell is aligned with the flame jet head, and the axis of the flame jet head is adjusted to pass through the axis of the cap shell and avoid the opening of air hole at the position of 50 mm ± 1 mm above the edge of the cap shell; the position of the bracket is adjusted so that the distance between the test area of the safety helmet and the end face of the flame jet head is 45 mm ± 1 mm, and then it is moved Open; open the gas volume control valve, adjust the flame length to 50 mm ± 2 mm, ensure that the flame has at least 15 mm blue flame; move the bracket to the position determined in front, the flame acts on the cap shell for 10 s, and cut off the gas source.

3. Record the afterburning time and possible penetration phenomenon, accurate to 0.1s.

Technical parameters:

1. Flame height measuring device - ruler height 50mm
2. Horizontal fuel nozzle with inner diameter of 10 mm
3. The inner diameter of Bunsen lamp is 10 mm ± 0.10 mm
The indication error of the timer is ± 1%, which is used to record the afterburning time * * to 0.01s
The indication error is ± 1%, which is used to determine the time of flame applied to the helmet. The burning time can be set by oneself, and the Bunsen lamp can move away automatically after the flame is applied
4. The bracket can firmly clamp the safety helmet to ensure the stable position in the test, and can be moved to adjust the distance between the safety helmet and the flame jet head
5. Fuel supply device, pressure control valve, gas volume control valve and gas storage tank device can ensure that the flame jet head can stably eject 50 mm long blue flame.