http://www.ansi.org/

http://www.astm.org/index.shtml

http://www.iso.org/iso/home.htm

http://www.nist.gov/index.html

http://www.osha.gov/

http://www.usp.org/

http://www.cfsan.fda.gov/

Bacteriological Analytical Manual Online

http://www.cfsan.fda.gov/~ebam/bam-toc.html

http://www.usda.gov/wps/portal/usdahome

EPA

http://www.epa.gov/

http://www.aoac.org/

http://www.cen.eu/cenorm/homepage.htm

http://www.din.de/cmd?level=tpl-home&languageid=en

http://www.oilandgasinternational.com/

http://www.pennenergy.com/index.cfm

http://www.who.int/en/