DSEAR applies to any workplace where a substance (or mixture of substances) with the potential to create a risk from energy-releasing events, such as fire, is present.
DSEAR classes petrol, solvents, LPG and certain types of dust as ‘dangerous substances’.
NOTE 1: Thermal fluids experience falling flashpoints over time due to the effects of high temperature. This increases fire risk in the event of loss of containment and therefore, is considered as a dangerous substance under DSEAR regulations. The regulations therefore apply to all closed heat transfer systems using thermal oils and synthetics.