Boilers shall be tested for carbon monoxide to what maximum level?

The correct maximum level of carbon monoxide for boiler testing is 50 ppm. This standard is important because excessive carbon monoxide can pose serious health risks, including poisoning and even death. The 50 ppm threshold is established based on safety guidelines to ensure that boilers operate efficiently while minimizing harmful emissions.

Testing for carbon monoxide at this level helps ensure compliance with safety regulations and protects both workers and the environment. This requirement highlights the importance of maintaining proper ventilation, regular maintenance, and effective combustion processes in boiler operation.

Understanding these safety limits is crucial in the context of environmental regulations and occupational safety, which is why the selection of 50 ppm as the maximum level reflects best practices in boiler management and public health considerations.