The cone calorimeter is a key device for testing the combustion performance of materials. The core test is based on the combustion characteristics of materials in real fire scenarios, building a strong defense line for the safety selection of materials in the fields of construction, transportation, electronics, etc. The core test items are as follows:

1. Heat release rate (HRR)

This is the core test index of the cone calorimeter, which can accurately reflect the heat released per unit time when the material burns. The higher the heat release rate, the greater the energy released when the material burns, the faster the fire spread speed, and the higher the fire hazard. Through this data, the fire risk level of the material can be directly judged, which is the core basis for evaluating the combustion hazard of the material.

2. Total heat release (THR)

It refers to the total heat released by the material during the whole process from ignition to extinguishment, which intuitively reflects the total scale of material combustion. The larger the total heat release, the more serious the overall thermal hazard caused by the fire, and the stronger the destructive power to the surrounding environment and structure. It is an important parameter for evaluating the overall fire hazard.

3. Effective Heat of Combustion (EHC)

Represents the heat released per unit mass of material, reflecting the efficiency of energy release during the combustion process of the material. The higher the effective combustion heat, the more concentrated the energy released per unit mass during the combustion of the material, and the stronger the energy impact in the fire, which can assist in the analysis of the combustion characteristics and energy release laws of the material.

4. Smoke release parameters

Contains smoke release rate and total smoke release, which is used to evaluate the amount of smoke produced when materials are burned. Smoke is an important factor in the death of people in fires. The greater the amount of smoke released, the lower the visibility of the fire scene, which not only hinders escape, but also increases the risk of asphyxiation. It is a key indicator to measure the safety of materials in fire.

5. Mass loss rate (MLR)

Refers to the mass loss per unit time of material combustion, reflecting the burning speed of the material. The faster the mass loss rate, the faster the material combustion consumption, and the more rapid the fire development, which can intuitively reflect the burning rate of the material and provide data support for fire prevention and control.

6. Time to Ignite (TTI)

That is, the time from heat radiation to ignition of a material is the core indicator to measure the flame retardancy of a material. The longer the ignition time, the more difficult the material is to be ignited, and the lower the probability of fire, which is crucial to improving the fire safety of buildings and products. It is an important basis for the development and screening of fireproof materials.

The cone calorimeter comprehensively restores the combustion characteristics of materials through multi-dimensional testing, providing scientific data for fire protection design and material selection. It is an important technical means to ensure fire safety and help reduce fire risks from the source.