GB/T 46121-2025

This standard specifies the test methods for measuring the thermal performance of forced convection air cooled refrigerant condensers, including procedures for determining heat rejection capacity, air-side pressure drop, and refrigerant-side characteristics under defined operating conditions. It is applied in the design, quality evaluation, and performance verification of condensers used in commercial refrigeration, air conditioning, and heat pump systems. The standard provides a unified testing protocol for manufacturers, testing laboratories, and certification bodies to ensure consistent and comparable performance data across different condenser products.