Product Details Published: 2023 Units of Measure: SI Product Code(s): 81231 You might also like … ASHRAE Chinese 90.1-2019 (SI) Complying with Standard 90.1-2019 Commissioning Process in New & Existing Buildings 2023 ASHRAE Handbook — HVAC Applications (SI) Category: ASHRAE Previous: Principles of Heating, Ventilating, and Air Conditioning, 9th Ed. Next: AS 4055:2021