The amount of exposure to a chemical without unreasonable risk of injury is listed on the SDS as what?

The correct answer is the term that represents the concentration of a chemical in the air that a worker can be exposed to over a specific time period without experiencing harmful effects. This term is known as TLV, which stands for Threshold Limit Value. TLV values are established by organizations such as the American Conference of Governmental and Industrial Hygienists (ACGIH) and serve as guidelines to help ensure that workplace environments are safe and healthy for employees.

When a TLV is indicated on a Safety Data Sheet (SDS), it provides valuable information about the acceptable exposure limit for that specific chemical, ensuring workers are informed about potential hazards and exposure limits necessary for maintaining their health.

In contrast, other terms listed have different meanings. LD50 refers to the lethal dose at which 50% of a population is expected to die from exposure to a substance and is primarily used in toxicity studies, showing how toxic a substance is rather than safe exposure levels. STEL, or Short-Term Exposure Limit, specifies a concentration that should not be exceeded for any 15-minute period during a workday. PEL, or Permissible Exposure Limit, is typically set by OSHA and refers to the legal limit on the amount or concentration of a substance in the air