ASHRAE IC 90.1-2019 Addenda bb

Addenda bb to Standard 90.1-2019 — Energy Standard for Buildings Except Low-Rise Residential Buildings (ANSI Approved; IES Co-sponsored)
Amendment by ASHRAE, 2022

ASHRAE 41.10-2020 Addendum b

Addendum b to Standard 41.10-2020 — Standard Methods for Refrigerant Flow Measurement Using Flowmeters (ANSI Approved)
Amendment by ASHRAE, 2022