Which MSDS section provides hazard ingredients/identity?

• A. Physical chemical characteristics
• B. Hazard ingredients/identity
• C. Health hazard
• D. Control measures

Answer: (B)

This item tests knowing where hazardous components and their identities are listed in an MSDS. The section dedicated to hazard ingredients/identity is where you’ll find the actual chemical names of the ingredients that contribute to hazards, along with their identities (and, for mixtures, the components that drive the hazard). This is essential for understanding what is truly in the product and assessing risk, exposure, and necessary precautions.

The physical chemical characteristics section describes properties like boiling point, flash point, density, and vapor pressure—not who the ingredients are or what hazards they pose. The health hazard section covers potential health effects, symptoms, and routes of exposure, but it doesn’t list the ingredients themselves. The control measures section focuses on safety practices, PPE, and engineering controls, not the composition of the product.