To address this question, we need to determine which SAE (Society of Automotive Engineers) Standards apply to equipment that recovers and recycles CFC-12 and HFC-134a refrigerants.
CFC-12 and HFC-134a: These are types of refrigerants used in vehicle air conditioning systems. CFC-12 is an older refrigerant known to harm the ozone layer, and HFC-134a is its more environmentally friendly successor.
SAE Standards: SAE International develops standards for engineering professionals in various industries, including automotive. These standards ensure safety, quality, and efficiency in automotive systems.
Relevant Standards:
SAE J2211: This standard addresses the equipment and procedures for recovering and recycling CFC-12 refrigerants.
SAE J1989: This standard pertains to the recovery and recycling processes for HFC-134a refrigerants.
Given this information, both J2211 and J1989 are applicable, depending on whether the equipment is used for CFC-12 or HFC-134a.
Therefore, the correct answer is:
D) J2211 and J1989
These standards are essential in guiding the proper handling and recycling of refrigerants to ensure environmental safety and compliance with regulations.