JIS Standards
www.jsa.or.jp/default_english.asp

DIN Standards - German
www2.din.de

DIN Standards - English
www2.din.de/index.php?lang=en

ANSI Standards
www.ansi.org

API Standards
www.api.org

NEMA Standards
www.nema.org

Engineering Page
www.efunda.com/home.cfm

Material Property Data
www.matweb.com

Thomas Register
www.thomasregister.com

International Paper World
www.ipwonline.de

More Conversion Factors0
www.corrosionsource.com/cgi-bin/convertunits.pl

Engineering Design Resources
www.engineersedge.com

EngNet Tools
www.engnetglobal.com/tips/toolsapp/default.asp

Units of Measure
www.unc.edu/~rowlett/units

European Community Directives
europa.eu.int/comm/enterprise/newapproach/standardization/harmstds/reflist.html

Heat Exchange Institute
www.heatexchange.org/pub