True or False: The PEL for Ammonia indicates that an operator must wear an Ammonia rated respirator with cartridges in that atmosphere.

The correct response is true because the Permissible Exposure Limit (PEL) for ammonia is set to protect workers from adverse health effects due to exposure in the workplace. When ammonia concentrations exceed the PEL, operators are required to wear appropriate personal protective equipment (PPE), including ammonia-rated respirators. These respirators are specifically designed to filter out ammonia and ensure safety in environments where exposure levels could pose a risk to respiratory health.

This standard is part of a broader commitment to occupational safety, which requires operators to take appropriate measures, such as using respirators, when working in atmospheres where hazardous chemicals are present at levels above established limits. By ensuring the use of the correct respiratory protection, operators can mitigate the risk of inhalation of ammonia, which can cause serious health issues, including respiratory irritation and long-term lung damage.