product features: Vertical flammability testing machine/textile flame retardant testing equipment with three types of burners and variable size combustion chamber Stainless steel cabinet with transparent tube side windows Bunsen burner flame, conforming to ASTM D5025 standard The ignition time can be set freely Timer accuracy is 0.1 seconds Standard stainless steel sample holders available Through the replacement of different sample holders, it can meet the requirements of different standards Automatically move the Bunsen burner mode, there is no time difference in the process of lighting and extinguishing http://burningtester.com/products/textile_flammability_tester/583.html