What is the TLV-STEL?

What is the TLV-STEL?

• A. Maximum concentration limit for a substance
• B. 15-minute exposure limit for a hazardous substance
• C. A regulatory measure for long-term exposure
• D. A guideline for personal protective equipment

Answer: (B)

The TLV-STEL, or Threshold Limit Value - Short Term Exposure Limit, specifically refers to a 15-minute exposure limit for a hazardous substance. It is designed to protect workers by indicating the maximum allowable concentration of a chemical in the air during a brief period of exposure, typically 15 minutes. This value is crucial for substances that pose health risks if inhaled in higher concentrations for short durations, such as irritants or acutely toxic materials. The importance of this limit lies in ensuring safety in workplace environments where sudden exposure to hazardous materials can occur. By setting a precise time frame for exposure, it allows for protective measures and monitoring to be effectively implemented in order to minimize health risks. The TLV-STEL is part of a broader set of guidelines that aim to manage and mitigate risks associated with chemical exposure in occupational settings.

The TLV-STEL, or Threshold Limit Value - Short Term Exposure Limit, specifically refers to a 15-minute exposure limit for a hazardous substance. It is designed to protect workers by indicating the maximum allowable concentration of a chemical in the air during a brief period of exposure, typically 15 minutes. This value is crucial for substances that pose health risks if inhaled in higher concentrations for short durations, such as irritants or acutely toxic materials.

The importance of this limit lies in ensuring safety in workplace environments where sudden exposure to hazardous materials can occur. By setting a precise time frame for exposure, it allows for protective measures and monitoring to be effectively implemented in order to minimize health risks. The TLV-STEL is part of a broader set of guidelines that aim to manage and mitigate risks associated with chemical exposure in occupational settings.