To which code must the specifications of an air receiver conform?

The specifications of an air receiver must conform to the ASME Code, Section VIII. This section of the American Society of Mechanical Engineers (ASME) Code specifically addresses the requirements for the design, fabrication, inspection, and testing of pressure vessels, which includes air receivers. Air receivers are classified as pressure vessels because they store compressed air, and therefore must adhere to the stringent safety standards set forth in this code to ensure reliability and safety during their operation.

ASME Code, Section VIII covers aspects such as materials, construction, pressure testing, and documentation, all of which are critical for ensuring that an air receiver can safely withstand the stress and pressure it will encounter in service. Conformance to these standards is essential for achieving certification and operational safety compliance.

The other options are related to specific types of equipment or standards but do not apply to air receivers directly. API Code, Section IV typically pertains to pressure vessels related to the petroleum and natural gas industries, while ASME Code, Section IV focuses on heating boilers, and ISO Code, Section III deals with nuclear facility components. Thus, only ASME Code, Section VIII is directly relevant to the specifications of an air receiver.