NIST Time|NIST Home|About NIST|Contact NIST

HomeAll Years:AuthorKeywordTitle2005-2010:AuthorKeywordTitle

Revision of Standard 62: What a Difference a Decade Makes.

pdf icon Revision of Standard 62: What a Difference a Decade Makes. (255 K)
Persily, A. K.

Indoor Air 2002, 9th International Conference on Indoor Air Quality and Climate. Proceedings. Volume 3. June 30-July 5, 2002, Monterey, CA, 328-333 pp, 2002.

Available from:

FOR MORE INFORMATION about this proceedings CONTACT: Conference Secretariat, Indoor Air 2002, 343 Soquel Avenue, PMB 312, Santa Cruz, California, 95062.
Telephone: 831-426-0148, Fax 831-426-6522, Email:


decision making; indoor air quality; standards; ventilation


The American Society of heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has been revising Standard 62,Ventilation for Acceptable Indoor Air Quality since 1991. The two primary motivations for this revision have been 1) to convert the document into minimum requirements in mandatory and enforceable language for adoption into building codes and 2) to update the content to reflect the increased knowledge from research and practical experience since the bulk of the standard was last approved in 1989. A number of changes have been approved since the revision process began ten years ago, but many difficult issues remain. This paper provides a summary of the progress that has been made to date and the issues that remain to be resolved before a complete code-language version of the standard can be issued.