ASHRAE Addendum z

Addendum z to Guideline 36-2018 — High-Performance Sequences of Operation for HVAC Systems
Amendment by ASHRAE, 2021

ASHRAE 34-2019 Addendum r

Addendum r to Standard 34-2019 — Designation and Classification of Refrigerants (ANSI Approved)
Amendment by ASHRAE, 2021

ASHRAE 164.4-2021

Standard 164.4-2021 — Methods of Test for Commercial and Industrial Adiabatic Humidifiers (ANSI Approved)
standard by ASHRAE, 2021

ASHRAE 100-2018 Addendum b

Addendum b to Standard 100-2018 — Energy Efficiency in Existing Buildings (ANSI Approved/IES Co-sponsored)
Amendment by ASHRAE, 2021

ASHRAE 55-2020 Addenda e

Addenda e to Standard 55-2020 — Thermal Environmental Conditions for Human Occupancy (ANSI Approved)
Amendment by ASHRAE, 2021

ASHRAE 188-2021

Standard 188-2021 — Legionellosis: Risk Management for Building Water Systems (ANSI Approved)
standard by ASHRAE, 2021