Laboratory Safety

Laboratory Safety Guide

This Laboratory Safety Guide has been developed by the Department of Environmental Health and Safety (EHS) to support individuals working in ��ַ laboratories by promoting safe work practices and ensuring compliance with applicable University policies as well as local, state, and federal environmental health and safety regulations.

This guide serves as a foundational resource for laboratory safety at ��ַ and is intended to support teaching, research, and clinical activities across all campuses. It outlines general safety expectations and responsibilities while emphasizing that safety is a shared responsibility. Laboratory personnel are expected to follow this guide in conjunction with work area–specific standard operating procedures (SOPs), training requirements, and applicable safety plans maintained by their department and EHS.

��ַ’s laboratory safety programs are based on recognized regulatory standards and are continuously reviewed and updated to reflect evolving regulatory requirements, best practices, and institutional needs. Through education, training, and shared accountability, ��ַ seeks to foster and sustain a strong culture of safety in all laboratory environments.

Plan Your Work

Before conducting any experiment, assess the hazards related to the work, including identifying the worst possible things that could go wrong; how to deal with them; and the prudent practices, protective facilities, and equipment necessary to minimize the risk of exposure to hazards.
Always know the hazards of the materials used (e.g., corrosivity, flammability, reactivity, and toxicity).
Read the Safety Data Sheet (SDS) for information on all chemicals you plan to use. Make sure all Personal Protective Equipment (PPE) is on hand. Use the SDS to select the needed equipment.
Post emergency contact numbers by the laboratory door or phone using an EHS Emergency Contact Card. To obtain a card, please contact EHS.
Inspect equipment and apparatus for weaknesses, cracks, or damage before beginning work.
Inspect electrical equipment and cords for frayed wiring or damage before use. Discard or repair damaged equipment.

Follow All Safety Procedures

Always wear chemical splash goggles for eye protection when working with chemicals.
When pouring large quantities of hazardous chemicals, in addition to goggles, wear a face shield large enough to protect your ears and neck as well as your face.
Always wear gloves when handling chemicals. Select the glove material based on compatibility with the chemicals you may contact.
Always wear appropriate clothing; chemically resistant lab coats or aprons are recommended.
Do not wear shorts or miniskirts (anything that would leave your legs bare and unprotected). Do not wear high-heeled shoes, open-toed/heeled shoes, sandals, or shoes made of woven materials. Confine long hair and loose clothing.
Do not work with hazardous chemicals or processes when alone in the laboratory. An instructor must supervise undergraduate students at all times.
Always use chemicals with adequate ventilation or in a chemical fume hood. Do not allow the release of toxic substances in cold or warm rooms, since these areas have contained, recirculated air.
Use chemicals only as directed and for their intended purpose.
Never use mouth suction to fill a pipette or siphon. Use a pipette bulb or other suitable device.
Handle needles, syringes, and other sharps carefully. Use self-sheathing needles or needleless systems whenever possible. Dispose of all sharps in appropriate sharps containers.
Do not dispose of chemicals down the drain. Most chemicals must be disposed of as hazardous waste.
Compressed gas cylinders must be secured to prevent them from being knocked over. Cylinders must be capped when the regulator is removed or not in use.
Inspect labs weekly for hazardous conditions.
Shield or wrap pressurized or evacuated equipment (dewars and vacuum flasks).

Know Emergency Procedures

Know where the nearest emergency eyewash and showers are and how to use them.
Know at least two exits from the laboratory area in case of an emergency.
In the event of an emergency, pull the nearest "Pull BOX," evacuate the area, and close all doors.

Practice Good Housekeeping and Personal Hygiene

Avoid direct contact with any chemical.
Never smell, inhale, or taste laboratory chemicals.
Always wash hands and arms with soap and water after removing gloves and before leaving the work area.
Never eat, drink, chew gum or tobacco, smoke, or apply cosmetics in the laboratory.
Do not pick up broken glass with your hands. Use a dust pan and brush or another appropriate tool.
Remove Personal Protective Equipment (PPE) such as gloves and lab coats before leaving the lab.
Remove gloves before handling common items like phones, instruments, doorknobs, etc.
Keep all work areas clean and uncluttered. Wipe down benches with cleaners or disinfectants regularly.
Do not block emergency showers, eye washes, exits, or hallways.

Transport Chemicals Safely

Use secondary containers such as acid buckets or plastic totes.
Secure containers on carts.
Wear appropriate PPE.
Limit access in passenger elevators.
Use a hand truck with a safety chain when moving compressed gas cylinders.

Unattended Operations

Provide for containment of materials in the event of spills or failures.
Label all containers and process equipment.
Post emergency numbers on the lab door.

Report Dangerous Activities and Situations

Report all accidents, no matter how minor.
Never perform unauthorized work, preparations, or experiments.
Never engage in horseplay, pranks, or other acts of mischief in laboratories.
Never remove chemicals from the facility without proper authorization.
Report hazardous conditions to EHS.
Report suspicious people or activities in lab areas to the Office of Safety and Security.