ASHRAE 189.1-2020 Addenda r

Addenda r to Standard 189.1-2020 — Standard for the Design of High-Performance Green Buildings (ANSI Approved; USGBC and IES Co-sponsored)
Amendment by ASHRAE, 2022

ASHRAE 34-2019 Addendum af

Addendum af to Standard 34-2019 — Designation and Classification of Refrigerants (ANSI Approved)
Amendment by ASHRAE, 2022