Lab Safety

Providing support, in the form of risk assessment, review, consultation(link sends e-mail), training, and the necessary resources and guidance for research at UC Berkeley.

Standard Operating Procedures (SOPs) Laser Template

Lasers-Class 3B or 4
Standard Operating Procedure

This Standard Operating Procedure (SOP) outlines requirements to be considered by an authorized user of the Type of Laser(s) or experiment as well as describes the normal operation of the laser and any hazards that may be encountered during normal operation. Finally, the SOP explains how to minimize any hazards and how to respond in an emergency situation. This document is to be reviewed one year from the date of approval or as conditions warrant, whichever is the shorter time period.

Cryogenic Liquids: Precautions and Safe Handling Procedures

Office of Environment, Health & Safety
2021

Cryogenic liquids are extremely cold liquids that at normal temperature and pressure would be a gas. These very cold liquids provide a fluid media that is useful for researchers to preserve their sample materials and for laboratory experimental processes. This fact sheet provides a summary of the hazards and safe work practices for users of cryogens and can be referenced in the laboratory Chemical Hygiene Plan. The most common cryogens are nitrogen and helium.

Fume Hoods

Common Sensors on Campus collapse all expand all Magnehelic and Minihelic

magnehelic gauge...

General Lab Safety Inspection Questions

Office of Environment, Health & Safety
Lab Safety General Lab Safety Inspection Program

EH&S lab safety specialists inspect labs with hazardous materials or operations. Labs within the College of Chemistry are inspected twice per year and all other labs annually. During inspections, lab safety specialists help researchers stay abreast of current safety requirements by providing consultation,...

Corrosive Waste Spill

August 31, 2015
Office of Environment, Health, and Safety
What Happened?

A UC Berkeley researcher was working in a lab with a highly corrosive sulfuric acid and hydrogen peroxide (piranha) solution to clean the surface of a glass sample in a fume hood.

After completing the work, the researcher found the existing waste container to be greater than 75 percent full. Rather than add the recently used piranha solution to the already overfilled waste container, the researcher found an additional empty waste container and attempted to pour off some of the overfilled waste into the empty bottle.

During this attempt, some of the corrosive...

Skin Burns from Heating Glass Vessel

September 25, 2023
Office of Environment, Health, and Safety
What happened?

A researcher was heating a small volume (<30mL) of hexanes/ethyl acetate containing approximately one gram of an organic azide. The solution was placed in a capped, 40mL pyrex media storage bottle. Holding the bottle of the azide solution in their left hand, the researcher was heating it with a heat gun with their right hand behind a horizontal fume hood sash protecting their face and torso.

Fume Hood Sash Cracks due to Reaction Vessel Overpressurization

September 25, 2023
Office of Environment, Health, and Safety
What happened?

Using dry Dimethyl Sulfoxide (DMSO) as solvent, a reaction between an organic macrocycle and bromoethane was placed in a round bottom pressure vessel. The reaction was heated using armor aluminum beads in a stainless steel bowl sitting atop a hotplate. The setup was briefly left unattended inside a fume hood with the sash closed.

Without a means for temperature control, the hotplate generated excess heat, which in turn produced excess pressure. Overpressurization caused the round bottom vessel to shatter. Glass shards along with the aluminum heating beads...

Carcinogens

Office of Environment, Health & Safety
2012

The Carcinogens Fact Sheet and Standard Operating Procedure (SOP) specify minimum requirements for safe storage, use, and handling of carcinogens on the UC Berkeley Campus. This fact sheet has been approved by the Laboratory Operations & Safety Committee and defines carcinogens as chemicals that cause cancer or tumor development, typically after repeated or chronic exposure. Their effects may only become evident after a long latency period and may cause no immediate harmful effects.

UC Berkeley Toxic, Corrosive and Pyrophoric (TCP) Gas Program Document

Office of Environment, Health & Safety
2021

UC Berkeley has a Toxic, Corrosive and Pyrophoric (TCP) Gas Program that specifies minimum requirements for safe storage, use, and handling of Toxic, Corrosive and Pyrophoric (TCP) gases on campus. The Office of Environment, Health & Safety (EH&S) coordinates this program by performing evaluations of toxic, corrosive and pyrophoric gas usage and offering technical advice on the requirements of the program.

New Chemical Inventory Requirements

July 12, 2024
Office of Environment, Health, and Safety

Environment, Health and Safety (EH&S) is in the process of tagging all chemicals in all buildings on campus in response to new chemical inventory requirements issued by the UC Office of the President (also see MAQ project page).

Town Halls: Introduction to chemical tagging

EH&S is hotsting virtual town halls throughout the month of July to...