Chemical Hygiene Plan 3.4, November 2018
All containers of hazardous chemicals must be labeled with the name of the chemical and the hazard(s), if not provided by the manufacturer. If a chemical has more than one hazard, it must be labeled with both hazards. For example, acetaldehyde is both a flammable and a carcinogen, and must be labeled appropriately. Additionally, the subsequent guidelines shall be followed
For containers labeled by the manufacturer:
For transferred products or prepared solutions labeled by the user:
Put containers in box or tray.
Peroxidizable chemicals are listed in APPENDIX G and must be labeled with:
Anything available over the counter to the general public is exempt from labeling requirements if it has already been labeled by the manufacturer. This includes consumer products such as cans of spray paint or turpentine.
Stationary process containers such as tanks may be identified with signs, placards, process sheets, batch tickets or other written materials instead of actually affixing labels to process containers. The sign or placard must convey the same information that a label would and be visible to employees throughout the work shift.
Portable containers into which hazardous chemicals are transferred from labeled containers and which are intended to be under the use and control of the person who transferred it, within the work shift in which it was transferred, are exempt from labeling. However, it is recommended that a temporary label identifying the chemical and its primary hazard be affixed to the container.
Refrigerators and Freezers: All refrigerator and freezer units used in laboratories must be marked as “SAFE FOR FLAMMABLE STORAGE” or “UNSAFE FOR FLAMMABLE STORAGE” on the exterior surface of the unit as appropriate. All cold rooms must be marked “UNSAFE FOR FLAMMABLE STORAGE”.
Posting: Labeling Containers (PDF)