The duration of a TLV/STEL exposure is _____ minutes.

The duration of a Threshold Limit Value/Short-Term Exposure Limit (TLV/STEL) exposure is established at 15 minutes. This time frame is crucial as it represents the maximum duration that workers may be exposed to certain hazardous substances at a specific concentration without experiencing adverse effects. The TLV/STEL is designed to limit short-term exposure to harmful agents that could cause acute health issues or irritate workers, making the 15-minute duration a critical benchmark in occupational health standards. This amount of time allows for brief, controlled exposures within a work environment while still emphasizing the importance of minimizing potential risks associated with hazardous materials. Understanding this timeframe is vital for workers and employers to ensure safety and comply with health regulations.