In this study, experimental samples of gypsum wallboard were subjected to many warmth fluxes at various durations using the ASTM E1354, Cone Calorimeter radiant heater. Schroeder was able to illustrate that a crystalline alter would occur within the gypsum wallboard when heated by making use of an x-ray diffraction procedure. https://fire-investigation89900.howeweb.com/27262004/fire-investigation-options