NFPA 85 (2011) is a copyrighted safety code that typically requires purchase, you can view the full text for free through the official NFPA Free Access
While a "free install download" for the PDF typically leads to unofficial or high-risk sites, you can access the code through these official channels: nfpa 85 2011 pdf free install download
To review codes and standards online: View the list of NFPA's codes and standards. Search for the code/standard # and select the " National Fire Protection Association (NFPA) Free access NFPA codes and standards NFPA 85 (2011) is a copyrighted safety code