The most active period of social movement rhetoric in the 20th century was the 1960s. This period roughly begins with a build-up from the Brown v. Board of Education of Topeka Supreme Court Decision of 1954. This desegregation decision began the Civil Rights movement.
Either way, a Safety Data Sheet, SDS, is designed to provide both workers and emergency personnel with the proper procedures for handling or working with a particular substance.
Sometimes the term specification is here used in connection with a data sheet (or spec sheet). This may be confusing. A data sheet describes the technical characteristics of an item or product as designed and/or produced. data sheet is not a technical specification as described in this article. A . In-service  or  Maintained as  specification, specifies the conditions of a system or object after years of operation, including the effects of wear and maintenance (configuration changes).