The University of Arizona

Chemical Hazards Standard Operating Procedures

Research Laboratory & Safety Services

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Campus Mail:
PO Box 245101

Phone: (520) 626-6850
Fax: 520-626-2583

Mailing Address:
Research Laboratory & Safety Services
PO Box 245101
Tucson, AZ 85724

Street Address:
1717 E. Speedway Blvd, Suite 1201
Tucson, AZ 85719

University Standard Operating Procedures

University Standard Operating Procedures (USOPs) provide detailed information about the safe use of hazardous chemicals in different situations. All University of Arizona laboratory workers must comply with any USOPs that apply to their work with hazardous chemicals. The hazards, control measures, spill, exposure procedures, and waste disposal requirements for each Hazard Class are described in specific Hazard Class USOPs. Other USOPs include "Unattended Reactions," "Proper Use of a Chemical Fume Hood" and "Use of Hazardous Chemicals in Animals."

All USOPs are included in Appendix B of the University Chemical Hygiene Plan and they are also available as separate PDF documents below.

Compressed Gases Hazard Class

Contact (Eye & Skin) Hazard Class

Corrosives Hazard Class

Delayed Health Hazard Class

Developmental & Reproductive Toxins Hazard Class

Explosives Hazard Class

Flammables Hazard Class

Highly Reactive Hazard Class

Ingestion Hazard Class

Inhalation Hazard Class

Laboratory Standard Operating Procedure Template (Word)

Oxidizers Hazard Class

Proper Use of a Chemical Fume Hood

Unattended Reaction

Use of Controlled Substances for Research

Use of Hazardous Gases

Use of Particularly Hazardous Drugs/Chemicals in Animals

Laboratory Standard Operating Procedures

Some procedures are specific to each laboratory so cannot be covered in the general University Standard Operating Procedures. These procedures must be documented as Laboratory Standard Operating Procedures (LSOPs) to address the specific chemical hazards and situations expected in the laboratory.

LSOPs are required for the use of hazardous chemicals with their own OSHA vertical standard (49 CFR 1900.1001 – 1910.1052). Examples of such chemicals include benzene, mercury, methylene chloride, and lead. LSOPs may also be required for specialized procedures or equipment in the laboratory that may present a unique hazard to laboratory workers, or that are meant to mitigate hazards presented to laboratory workers.  All laboratory specific LSOPs must be included in the Approval’s Laboratory Chemical Hygiene Plan (LCHP) and their relevance and effectiveness evaluated annually, with the rest of the LCHP.

LabRAT (Lab Risk Assessment Tool)

When designing your laboratory protocol, it is imperative to consider the hazards and risks involved in each step of the process. Performing a risk assessment before starting a new protocol will challenge you to think critically about what your research questions, outcomes, and variables are and whether or not your process is supporting those and your health and safety.

The UArizona LabRAT (Risk Assessment Tool) is a framework for assessing your risk that operates on the scientific method and principles of health safety: anticipating, recognizing, evaluating, and controlling hazards.

Contact Research Laboratory Safety Services at 520-626-6850 or for assistance.