To meet purity specifications, new recycled or reclaimed R-134a must adhere to which standard?

The correct answer is associated with AHRI Standard 700, which specifies the requirements for the purity of refrigerants, including recycled and reclaimed R-134a. This standard outlines the permissible levels of various contaminants and provides guidelines for the proper handling and storage of these refrigerants to ensure they meet safety and performance criteria.

Adhering to AHRI Standard 700 is crucial for ensuring that recycled or reclaimed R-134a maintains its effectiveness as a refrigerant and does not harm the environment or the equipment it is used in. By following these purity standards, technicians can ensure compliance with regulations while maintaining the integrity of the refrigerant, thus contributing to improved system efficiency and longevity.

The other standards mentioned pertain to different topics within the industry. AHRI Standard 600 typically covers performance and testing of unitary air conditioning and heat pump equipment, while AHRI Standard 800 addresses guidelines regarding water heaters. AHRI Standard 900 is associated with commercial and residential heating, ventilation, air conditioning, and refrigeration equipment. Therefore, those standards are not directly relevant to the purity specifications for R-134a.