What is OSHA's permissible exposure limit (PEL) for hydrogen fluoride (HF)?

The permissible exposure limit (PEL) set by OSHA for hydrogen fluoride (HF) is indeed 3.0 ppm, which is a critical standard designed to protect workers from the harmful effects of exposure to this highly corrosive substance. HF can lead to severe health risks, including damage to the skin, eyes, and respiratory tract, making it essential for the workplace exposure levels to be regulated.

This PEL is established based on extensive research into the toxicological effects of HF, considering both acute and chronic exposure scenarios. It is essential for employers to ensure that employees are not exposed to levels exceeding this limit, as even short-term exposure to levels above the PEL can lead to significant health issues. Adhering to these safety regulations is crucial for maintaining a safe working environment, especially in industries where HF is commonly used, such as chemical manufacturing and petrochemical refining.