You may also be asked to give examples of chemicals that should be labelled with a particular hazard symbol, or suggest a suitable hazard symbol for a. To warn us of the hazards chemicals use hazard symbols. These symbols are used all over the world, so no matter what language its in you'll understand the. Collection of hazard symbols which can be used till 1 June. HSE aims to reduce work-related death, injury and ill health. In Europe, this type of sign is used if there are no more-specific signs to denote a particular hazard. However, if you would like to, you can change your cookie settings at any time. Health and Safety Executive. The blue section denotes health risks.