Chemical Labeling 29 CFR1910.1200, 29 CFR 1910.1450

1) Name:

• Original chemical stock containers must have the full chemical name in English
• In the case of secondary containers, an abbreviation may be used for which there is a definition posted in a central location for all personnel (i.e. Chemical Abbreviations Sheet) where chemicals are stored, prepared, or used. 

2) Dates: 

• All labels on original manufacturer stock chemical containers must be legible and undefaced, with dates of receipt, opened date, and expiry date (if applicable). 
• Secondary containers must be marked with the date of preparation or dispensed date.

3) Hazard information: 

• All U.S. Manufacturer’s stock chemical containers are required to display this information. This information is also available on the Manufacturer’s SDS for the chemical.   
• For secondary containers, any primary hazards must be indicated to personnel.  This may be conveyed by the utilizing GHS pictograms or hazard statements (i.e. “Causes serious eye damage”). If a chemical is hazardous, the GHS Signal Word (Danger or Warning) must also be used.

PLEASE NOTE:  Reaction intermediates shall also be properly labeled. These chemicals shall be assumed hazardous and subject to the Chemical Hygiene Plan. To ensure compliance, label the container with as much information as possible such as parent compounds, potential hazards, and health effects.

Containers of the following class of materials are required to be labeled with the date of receipt, opening date, and in the case of original stock container AND mixed solutions in secondary containers, expiration date: 

• Anhydrous HF/HBr
• Chloroform (NOTE: Amylene stabilized chloroform must be disposed of after 1 year)
• Concentrated formic acid
• Perchlorates
• Peroxides (Be aware: Some organic peroxides are also temperature sensitive!)
• Peroxidizable material (e.g., aldehydes, ethers, compounds containing benzylic hydrogen atoms)
• Picric acid and Picrates
• Potassium metal and alloys, alkali metal amides
   

As a part of good chemical hygiene and compliance with the OSHA Laboratory Standard, it is the responsibility of the Principal Investigator/Laboratory Supervisor to inform all laboratory of the hazardous properties of all experimental chemicals utilized in the laboratory and how to store and handle them safely as a part of good chemical hygiene and compliance with the OSHA Laboratory Standard.  Information about a chemicals hazardous properties, incompatibilities with other chemicals, and proper storage may be found on the chemical manufacturer's SDS.

If experiments with particularly hazardous chemicals are left unattended, place signage on the chemical fume hood or the location where the experiment is taking place for others to be informed of the materials in use and measures to take in the event of an emergency.   A sign for this purpose is available for your use HERE.