What kind of information is typically found in a Material Safety Data Sheet (MSDS)?

The correct choice is focused on the comprehensive details regarding safety information and handling instructions for hazardous materials. A Material Safety Data Sheet (MSDS) is designed to provide workers and emergency personnel with the necessary information to properly handle and respond to potential hazards associated with a chemical substance. This includes data on the chemical's properties, health risks, protective measures, safe handling practices, and what to do in case of an emergency, such as spills or exposure.

The other choices, while they may pertain to broader safety and operational guidelines, do not encapsulate the primary purpose of an MSDS. Emergency contact details for chemical manufacturers is important but secondary to the immediate safety information. Instructions for operating machinery safely are typically found in separate machinery operating manuals, not in an MSDS. Background information on the chemistry of substances is more relevant to understanding the chemical's behavior than to the practical, immediate safety measures needed in a workplace setting. Thus, the core intent of an MSDS is to ensure that workers can effectively manage the risks associated with hazardous materials, making the safety information and handling instructions essential.