ASTM D7309 is a standard test method for determining the flammability of plastics, composites, and other solid materials. It involves the controlled heating of milligram-sized specimens in a laboratory setting and the subsequent complete thermal oxidation of the gases from the specimen. The test measures heat released during combustion by measuring oxygen consumption, similar to thermal analysis methods. The test method applies to materials in all forms, such as fiber, film, powder, pellet, or droplet. The MCC instrument has two stages: anaerobic pyrolysis in a nitrogen-rich environment and thermal oxidation of the pyrolysis gases in an oxygen-rich environment, referred to as a combustor. This method mimics the condensed-phase and gas-phase processes of flaming combustion without a flame. The data collected provide key flammability parameters, such as heat release rate, peak heat release rate, total heat release, and heat release capacity, for material development, fire safety engineering, and regulatory compliance.
Get Certified ASTM D7309 for Reliable Terne-Coated Steel Performance
Certification provides that plastics and other solid materials are correctly characterized for flammability in accordance with the standardized microscale combustion calorimetry (MCC) procedures. The skilled laboratory testing enables manufacturers to assess a material’s fire hazard status, compare material formulations, and choose fire-resistant components. ASTM D7309-certified testing supports quality control, material verification, and product development across applications in aerospace, automotive, construction, and consumer electronics. A professional laboratory service guarantees that tests adhere to the standard requirements and give confidence in the results. Certified testing can determine a fire’s ignition behavior and combustion energy, and it can be repeated and conducted in a controlled manner.
