ASHRAE 30-2025 ✓ Most Recent

ANSI/ASHRAE Standard 30 prescribes methods for obtaining performance test data of liquid-chilling or liquid-heating equipment using the vapor compression thermodynamic cycle and any type of compressor. The intent of the standard is to provide uniform test methods to measure the performance of this equipment by specifying the test and instrumentation requirements, test procedures, data to be recorded, and calculations to generate and confirm valid test results.

The 2025 edition of Standard 30 is an extensive update and includes download access to a system calibration worksheet and water pressure drop adjustment worksheet (Microsoft Excel). For a full list of changes, click the preview link below the cover image at the top of this page.