Associate Safety Professional Practice Exam

What is a TLV-C?

1. A ceiling limit for airborne substances

2. A calculated average of chemical exposure

3. A standard for electrical safety

4. A guideline for ergonomic practices

The correct answer is: A ceiling limit for airborne substances

A TLV-C, or Threshold Limit Value - Ceiling, is indeed defined as a ceiling limit for airborne substances. This means that it represents the maximum concentration of a toxic substance in the air that a worker can be exposed to at any time without adverse effects. Unlike other types of Threshold Limit Values that may take into account time-weighted averages, TLV-C is specific about exposure limits that should never be exceeded during any part of a workday. Understanding TLV-C is crucial for occupational safety and health as it helps in establishing the necessary controls to protect workers from immediate health hazards associated with high concentrations of airborne chemicals. These limits are established through research and are necessary for maintaining a safe working environment. The context of a ceiling limit is especially important when dealing with substances that are known to lead to acute effects from short-term exposures. In practice, adherence to TLV-C helps employers in evaluating and managing the risk associated with chemical substances in the workplace.