How many sections are typically found on a Material Safety Data Sheet?

A Material Safety Data Sheet (MSDS), now more commonly referred to as a Safety Data Sheet (SDS), typically contains 16 sections in accordance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). However, if you're considering a traditional MSDS format, it often organizes information into 9 sections. These sections are designed to provide comprehensive information about the properties of a chemical substance or mixture, including its hazards, composition, safe handling procedures, and emergency response measures.

The nine sections generally include:

1. Identification

2. Hazard Identification

3. Composition/Information on Ingredients

4. First-Aid Measures

5. Fire-Fighting Measures

6. Accidental Release Measures

7. Handling and Storage

8. Exposure Controls/Personal Protection

9. Physical and Chemical Properties

These sections ensure that users are well-informed about the chemical's characteristics and the necessary precautions to take while handling it. Consequently, the choice of 9 reflects the standard layout commonly referred to in historical contexts and examinations, making it the correct answer in this scenario.