Test method of TPP Thermal Protective Performance Test Apparatus

The TPP Thermal Protective Performance Test Apparatus exposes the protective material to the flame to detect the passing heat. Used to determine the fire resistance of textiles, fire-fighting supplies and other materials. The horizontally fixed sample is exposed to a propane burner flame with an impingement heat flux of 80 kW/m, and the heat passing through the sample is measured with a calorimeter. The time required to rise 12°C and 24°C in the calorimeter respectively. The heat transfer index is the average of the results of three samples. The device consists of a burner, a cover plate and a calorimeter with a sample holder. The equipment is controlled by a software-controlled pneumatic device. The software includes the calculation and evaluation methods specified by the standard. This software can also control the delivery switch of propane gas. For safety, the burner is also equipped with electronic ignition insurance.

TPP Thermal Protective Performance Test Apparatus

1. TPP Thermal Protective Performance Test Apparatus test method:
 
Place a heat source on one side of the sample to be tested and a copper calorimeter on the other side. Start the test, push and pull the sample clamp in place, when the sensor value reaches the human body's secondary burn tolerance limit (the temperature of the sensor rises by 35℃~40℃), remove the sample clamp from the heat source. From the intersection of the response curve and the human tissue tolerance curve, read the time that caused the second degree burn to the nearest 0.1 second.
 
2. Main technical indicators of TPP Thermal Protective Performance Test Apparatus:
 
Heat radiation index TPP heat transfer index HTI radiation, second degree burn curve heat transfer curve, heat flux of radiant heat source: 10-50kW/m2, heat flux of convective heat source: 10-50kW/m2 Configuration requirements, meet the above standard requirements Configuration. A set of dedicated computers for the instrument. Methane gas and air compressor are purchased locally, and the cost is extra. Before the test, there is a heat insulation board between the sample and the heat source, and there is no measuring place.