Radiation 36 : The emission and propagation of energy through matter or space by means of electromagnetic disturbances that display both wave-like and particle-like behavior
NFPA 801 Standard for Fire Protection for Facilities Handling Radioactive Materials, 2008 ed. https://www.nfpa.org/Assets/files/AboutTheCodes/80 1/FIF-AAA_ROPagenda_6-11.pdf, (Std: Fr Prac for Faclty Hndlg Radioactive Mtrls - Amer) {348 NFC}