ASHRAE 52.2-2017 Addendum a

Addendum a to Standard 52.2-2017 — Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size (ANSI approved)
Amendment by ASHRAE, 2018

ASHRAE IC 170-2008-8

Interpretation IC 170-2008-8 of ANSI/ASHRAE/ASHE Standard 170-2008 Ventilation of Health Care Facilities
Amendment by ASHRAE, 2014