Right to Know is a an employees right to have access to MSDS, SDS, ESDS sheets. This information is law in many countries around the world. In some countries they must be openly displayed while in others an employes must ask and the employer must make the MSDS or SDS or ESD sheets available.
This first video is from 1993. As i have said previously if it is old this points out that this has been KNOWN for a long time.
Hazard communication standard 1926.59 : Occupational Health and Safety Administration : Free Download & Streaming : Internet Archive
The Employees Right to Know
Safety Video - Hazard Communications - Right to Know (PREVIEW) - YouTube
Chemicals Health Monitor - Use Your Right To Know!
RTKNet: The Right-to-Know Network | rtknet.org: The Right-to-Know Network
Right to know - Wikipedia, the free encyclopedia
OSHA Right To Know
USG: Right-to-Know Basic Awareness Training
European Ombudsman»European citizens' right to know - complaints about lack of transparency