Here are valuable websites from national and international standards organizations:
ASTM International. (2013). Standard terminology of facility management (building-related). ASTM E1480-92 (Reapproved 2013). West Conshohocken, PA: ASTM International. Retrieved from ASTM Standards and Engineering Digital Library.
or
ASTM International. (2013). Standard terminology of facility management (building-related). ASTM E1480-92 (Reapproved 2013). West Conshohocken, PA: ASTM International. doi:10.1520/E1480-92R13
Many print and online standards are available. These series include many that are limited Purdue users. Others are available free online or to clients who visit the Engineering and Science Library at Purdue.