Hazard Identification

With respect to labels and Safety Data Sheets:

  1. Departments must ensure that labels on incoming containers of hazardous chemicals are not removed or defaced.
  2. Departments must ensure that laboratory containers of chemicals are labeled where required.  Laboratory containers, including bottles, flasks, sample vials, etc., must be marked, labeled, or coded in all cases.  (If codes or markings other than chemical names are used, a code key or legend and log book must be available in the workplace where it may be found quickly and easily by emergency responders, ORS personnel, etc.)  Labels should bear a date of receipt and should identify the owner of the material.
  3. Departments must maintain any Safety Data Sheets that are received with incoming shipments of hazardous chemicals, and ensure that they are readily accessible to laboratory employees.

Safety Data Sheets are available from the supplier and online. Safety Data Sheets for chemicals in use must be readily accessible at all times.


The following requirements apply to chemical substances developed in the laboratory:

1.   If the composition of the chemical substance that is produced exclusively for the laboratory's use is known, the principal investigator must determine if it is a hazardous chemical (e.g., by literature search).  If the chemical is determined to be hazardous, the principal investigator must provide appropriate training to protect employees.

2.   If the chemical produced is a by-product whose composition is not known, the principal investigator must assume that the substance is hazardous and must comply with the requirements of the CHP.

3.   If the chemical substance is produced for another user outside of the laboratory, the principal investigator must comply with the Hazard Communication Standard (29 CFR 1910.1200) including the requirements for preparation of Safety Data Sheets and labeling.