The public review period for four American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) standards ends August 7. Up for review are Standard 62-1999 (“Ventilation for Acceptable Indoor Air Quality”), Standard 34-1992 (“Number Designation and Safety Classification of Refrigerants”), Standard 34-1997 (“Designation and Safety Classification of Refrigerants”), and Standard 90.1-1999 (“Energy Standard for Buildings except Low Rise Residential Buildings”).
Standard 62, which is designed to set minimum ventilation rates and other requirements for commercial and institutional buildings, has three addenda up for public review. They are: