What code regulates the recommended guidelines for the care of Power Boilers?

The correct choice highlights the importance of ASME Section VII, which specifically addresses the recommended guidelines for the care of power boilers. ASME, which stands for the American Society of Mechanical Engineers, publishes codes that provide standards and practices primarily for the design, construction, and maintenance of mechanical systems, particularly those used in power generation.

ASME Section VII, in particular, outlines criteria to ensure safe operation, maintenance, and inspection protocols for power boilers. This section helps engineers and operators understand their responsibility in upholding safety standards and operational efficiency, ensuring that power boilers are managed in accordance with best practices to minimize risk and prolong equipment life.

While the other standards mentioned serve valuable roles in their respective fields, they do not specifically pertain to the care of power boilers. CSA B52 is focused on refrigeration systems, IEC 60439 deals with low-voltage switchgear and control gear assemblies, and ASTM D618 specifies standard test methods for determining the properties of materials but is not confined to boiler care guidelines.