ASHRAE 62.1-2016 Addendum as

Addendum as for Standard 62.1-2016 — Ventilation for Acceptable Indoor Air Quality (ANSI Approved)
Amendment by ASHRAE, 2019

ASHRAE 170-2017 Addendum n

Addendum n to ANSI/ASHRAE/ASHE Standard 170-2017 — Ventilation of Health Care Facilities (ANSI/ASHRAE/ASHE Approved)
Amendment by ASHRAE, 2020