Air receiver tank must be designed per which code?

• A. ISO 9001
• B. API 650
• C. ASME B31.3
• D. ASME Section VIII

Answer: (D)

Air receivers are pressure vessels, so their design is governed by ASME Section VIII of the Boiler and Pressure Vessel Code. This section provides the requirements for design, materials, fabrication, inspection, and testing of vessels that operate under pressure, including the stresses, minimum wall thickness, corrosion allowances, nozzle connections, welding, and hydrostatic testing needed to ensure safe operation. The other standards do not apply: ISO 9001 is about quality management systems, API 650 covers atmospheric storage tanks for liquids, and ASME B31.3 covers process piping, not vessels. Therefore, the correct code for an air receiver tank is ASME Section VIII.