Question

Technician A says that SAE standard J639 spells out details for system design, implementation and service. Technician B says that SAE standard J639 specifies refrigerant fitting types and sizes for each refrigerant. Who is right?

1) Technician A
2) Technician B
3) Both Technicians
4) Neither Technician

Answer 1

Both Technicians A and B are correct; SAE standard J639 covers both the requirements for automotive air conditioning systems and the specific refrigerant fitting types and sizes for each refrigerant.

Step-by-step explanation:

Technician A is correct in saying that SAE standard J639 specifies the requirements for the design, construction, and performance of motor vehicle air conditioning systems, including details about system design, implementation, and service procedures. This standard is detailed to ensure safety, efficiency, and compatibility within the automotive industry. Technician B is also correct; SAE J639 provides specifications for refrigerant fitting types and sizes for various refrigerants, ensuring that different refrigerants are not accidentally mixed, which could be dangerous or could damage the system. Therefore, Both Technicians are correct in their statements regarding SAE standard J639.