The admin tries his best to spend some time to collect API standards,which can be downloaded on the website.
API SPEC 15HR:2001R2010 pdf download
API Spec 1581:2002 pdf download
API SPEC 12B:2008 pdf download
API SPEC 12D:2008 pdf download
API SPEC 6D:2008 pdf download
API RP 2216:2003(2010) pdf download
API RP 51:2001(2013) pdf download
API RP 13D:2006 pdf download
API RP 577:2004 pdf download
API RP 64:2001(2012) pdf download
API RP 7C-11F:2008 pdf download
API RP 2028:2010 pdf download
API RP 1632:2010 pdf download
API RP 11S4:2002(2013) pdf download