ASHRAE 15-2019 Addendum a

Addendum a to Standard 15-2019 — Safety Standard for Refrigeration Systems and Designation and Classification of Refrigerants (ANSI Approved)
Amendment by ASHRAE, 2020

ASHRAE 154-2016 Addendum b

Addendum b to Standard 154-2016– Ventilation for Commercial Cooking (ANSI Approved)
Amendment by ASHRAE, 2020