Hazard Signs

Hazards fall into three categories: chemical, biological, and physical. In describing hazards it’s important to stress that hazards are only a potential problem. The presence of a hazard does not mean you will experience adverse effects. You must recognize the type and degree of hazard present in any work that you do, and take the appropriate protective measures. The Lab has an excellent safety record, which we are committed to maintaining and improving.

Hazard signs alert you to the presence, nature, level of a hazard, and the protection required (safety glasses, hearing protection, etc.) in the work area. For example, signs may indicate the presence of radioactive materials, high-voltage electricity, lasers, carcinogens, corrosives, biohazards, or magnetic fields.

Danger indicates the presence of an immediate danger, requiring special precautions and specialized controls to ensure employee safety. For instance, high-voltage electricity requires a Danger sign.

Caution indicates a possible hazard for which proper pre-cautions must be taken; for example, the Caution signs in an Eye Hazard Area, where safety glasses must be worn.

Notice is used to provide general instructions or information related to safety. Dosimeter areas for radiation workers are indicated by Notice signs.

Entrances to work areas at LBNL are posted with signs describing the hazard associated with the area.

Hazard Communication

The Laboratory is committed to following the federal Occupational Safety and Health Administration (OSHA) Hazard Communication Standard (also known as the Right to Know law) and the OSHA Laboratory Standard (29 CFR 1910.1200 and 29 CFR 1910.1450). These standards require that all employees must be provided with health and safety information necessary to protect themselves against potentially harmful exposures to hazardous substances. A hazardous substance is any chemical or material that can harm your body either at the time of exposure or later.