Before OSHA implemented its version of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), MSDS’s could be in any format. With the GHS changes, SDS’s now have a mandatory 16-part format. Likewise, MSDS’s required a more limited amount of information compared to current SDS’s. For example, compare the MSDS and SDS for benzoic acid:
- SDS Version in standard 16-part GHS format.
- An MSDS Version from the 1990’s.
See this OSHA Brief “Hazard Communication Standard: Safety Data Sheets” for more information about the currently required 16-part GHS format.