Cone Calorimetry Test

Cone Calorimetry Test

Alfa Chemistry is equipped with advanced equipment and professional materials chemists to provide you with cone calorimetry testing services, including samples you send for testing or samples of flame retardant materials developed in cooperation with us.


Test Content

Test Range

Cone calorimeter is mainly used to study the action mechanism of flame retardants, compare different flame retardant behaviors of materials, evaluate the combustion performance of materials, and conduct fire simulation research. Our cone calorimeter testing services can be used to meet various flammability standards and laws and regulations during new product development.

Test Method

The main working principle of the cone calorimeter is the "oxygen consumption principle". When the sample is burned under the thermal radiation of the conical electric heater, the flame will consume a certain concentration of oxygen in the air and release a certain combustion calorific value. Based on this principle, cone calorimetry calculates and analyzes relevant parameters according to the amount of oxygen consumed by the material during combustion, thereby judging the combustion performance of the material.

Schematic diagram of a cone calorimeterSchematic diagram of a cone calorimeter [1]

Common Test Standards

At Alfa Chemistry, experienced materials chemists will recommend and select appropriate test standards for you based on customer needs and specific products.

  • ISO 5660
  • ASTM E 1354

Important Test Parameters

  • Heat Release Rate (HRR)
  • Total Heat Released (THR)
  • Mass Loss Rate (MLR)
  • Smoke Produce Rate (SPR)
  • Effective Heat of Combustion (EHC)
  • Time to Ignition (TTI)
  • CO2 generation rate
  • Toxicity determination (CO, HCN, SO2, HCl, H2S, etc. gas release)

Advantages of Cone Calorimetry Test

Although the traditional test methods (oxygen index method, vertical combustion method, and horizontal combustion method) have the characteristics of simple operation, rapidity, and good repeatability, these methods generally have shortcomings such as single test parameters and inability to quantify test results.

Compared with the traditional test method, the cone calorimetry test has the advantages that the measured value of the parameters is less affected by external factors, has a good correlation with the results of large-scale experiments, and is rich in test parameters.

Why Choose Alfa Chemistry?

Experienced team of materials chemists

Leading flame retardant technology

Reliable quality and standards

Fast turnaround times and great prices

Comprehensive and systematic testing and analysis services

Research Information

Weiguang An et al. evaluated the fire performance of expanded polystyrene (EPS) and extruded polystyrene (XPS) by cone calorimetry. In this work, the researchers focus on the correlation of sample thickness and heat flux with cone calorimetry test data. The main results are shown in the figure below.

(A) HRR transient evolution of samples with different thicknesses; (B) HRR history comparison under different heat fluxes.(A) HRR transient evolution of samples with different thicknesses; (B) HRR history comparison under different heat fluxes. (a. XPS, b. EPS) [2]

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  1. Lulu Yin, et al. (2018). "Combustion Behaviors of CIGS Thin-Film Solar Modules from Cone Calorimeter Tests," Materials 11(8), 1353.
  2. [2] Weiguang An, et al. (2015). "Correlation analysis of sample thickness, heat flux, and cone calorimetry test data of polystyrene foam,"Journal of Thermal Analysis and Calorimetry 119, 229–238.
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