Spontaneously Combustible Hazard Symbol (GHS Class 4) - Safety Guide #268667 (License: Personal Use)

The image displays the Globally Harmonized System (GHS) hazard pictogram for spontaneously combustible substances (UN Class 4.2). It features a black flame symbol on a white upper half, with the words “SPONTANEOUSLY COMBUSTIBLE” in bold black text on a red lower half, and the hazard class number “4” at the bottom point. This symbol is used on labels and safety data sheets to alert handlers to materials that may self-heat and catch fire when exposed to air, even at ambient temperatures.

This image is typically used on chemical safety datasheets (SDS), hazardous material packaging, workplace signage, training materials, and regulatory compliance documentation. It serves users seeking to identify, handle, store, or transport spontaneously combustible substances safely, aligning with OSHA, DOT, and GHS standards.