CERN Accelerating science

The radiation produced by lasers may be hazardous to the human eye and skin. It may also present fire or explosion risks. Lasers have been classified according to their exposure hazards. Conditions for use and warning labels and notices are recorded.

Reference is made to publications on electrical installations.

Rules for the safe use of PCB and for the elimination from CERN in a controlled and safe manner, to conform to the legislation of the Host-States.

The object is to define safety alarms and to establish general rules for the installation, maintenance, disabling, and layout of safety alarm systems generating level 3 alarms. The EDH version of the disabling form is now mandatory.

Definition of responsibilities and organizational aspects concerning safety inspections, with emphasis for buildings.

This instruction is intended to ensure a very high level of safety and must be applied to all new installations at CERN, including modifications to existing installations. CERN attaches great importance to the hazards associated with the density, toxicity and corrosiveness of smoke from burning plastics. The document is complemented by tables of standards and specifications for the selection of plastics, and guidelines for their use.

Safety rules for the transport, use and storing of cylinders to avoid fire or explosion hazards.

Safety rules for the transport, use and storing of cylinders to avoid fire or explosion hazards.

The purpose of this safety instruction is to remind the CERN personnel of the safety instructions prohibiting the use of asbestos, of those concerning the management of asbestos in situ and those governing activities entailing a risk of exposure to asbestos.

This Safety Instruction defines rules and other preventive measures for cable fires. It lists the most common fire risks for cables and conduits. Mandatory precautions are specifically aimed at preventing cable fires in physics experiments where confined spaces, higher vicinity risks and lack of effective electrical protections add up to an increased risk of ignition.

This Safety Instruction defines rules and other preventive measures for cable fires. It lists the most common fire risks for cables and conduits. Mandatory precautions are specifically aimed at preventing cable fires in physics experiments where confined spaces, higher vicinity risks and lack of effective electrical protections add up to an increased risk of ignition.

This instruction gives a definition of chemical pollution and examples of common water pollution hazard. It explains the role of the SC services in matters of the environmental protection, lists the activities and circumstances that may lead to pollution. It outlines practical measures to be obeyed to prevent pollution and instructs how to behave when pollution or leakage of polluting liquids is observed or believed. Finally, it explains legal aspects of water pollution, including INB regulations, and addresses liaisons with the Host States in matters of environmental protection.

Description of the two types of emergency stops (general and local emergency stops), definition of the buildings or areas to be equipped, and effects due to these emergency stops on power supplies or accelerators. Exceptions and rules for safety equipment.

Description of the two types of emergency stops (general and local emergency stops), the definition of the buildings or areas to be equipped, and effects due to these emergency stops on power supplies or accelerators. Exceptions and rules for safety equipment.

The scope of this Safety Instruction is to describe operational procedures in response to accidents, to assure coordination of interventions, both at CERN and with outside emergency services as well as the transmission of information within CERN and in case of need to the Host States Authorities and media. The adopted procedures depend on the seriousness level assigned to the event.