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MSDSs (Material Safety Data Sheets). The passage of the OSHA Hazard Communication Act of 1980 (Right to Know Law) called for the use of MSDSs if workers encounter hazardous chemicals A chemical is deemed hazardous if:

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Msdss material safety data sheets
MSDSs (Material Safety Data Sheets)

The passage of the OSHA Hazard Communication Act of 1980 (Right to Know Law) called for the use of MSDSs if workers encounter hazardous chemicals

  • A chemical is deemed hazardous if:

  • It is cancer causing, toxic, corrosive, an irritant, a strong sensitizer, flammable, or reactive & thus poses a threat to health

  • It is specifically listed under the OSHA Act, 29 CFR 1910, Section 1200 or

  • It has been assigned a TLV by the American Conference of Government and Industrial Hygienists


Msdss material safety data sheets

  • Right to Know Legislation is designed to provide workers with information to help them deal safely with occupational exposures and hazards

  • But in practice, MSDSs have been more designed for health and safety professionals and do a poor job of conveying info to laboratory practitioners

  • Many MSDSs comprehensively list all conceivable health hazards


Look over the msdss for toluene and hydrogen peroxide compare with the labels
Look over the MSDSs for Toluene and Hydrogen Peroxide, Compare with the Labels

  • Locate each piece of information shown on the label on the corresponding MSDS, use a highlighter to mark information on the MSDS that is also shown on the label. Note the information on a particular topic may appear in more than one place on the MSDS. Compare the label’s and the MSDS’s presentation of similar information. How are they similar? Different?

  • Look over the non-highlighted information on the MSDS. What kind of information does the MSDS contain that the label does not?


Understanding health hazards
Understanding Health Hazards Compare with the Labels

For each compound category listed in the table, identify the solvent that poses the least risk. Explain your choices.