Sites de interesse:

MDHS – Methods for the Determination of Hazardous Substances

http://www.hse.gov.uk/pubns/mdhs/

NIOSH (National Institute for Occupational Safety and Health) – Manual of Analytical Methods

http://www.cdc.gov/niosh/docs/2003-154/

OSHA (Occupational and Safety Health Administration) – Sampling and Analytical Methods

https://www.osha.gov/dts/sltc/methods/toc.html

ATSDR (Agency for Toxic Substances and Disease Registry)

http://www.atsdr.cdc.gov/

OMS (ORGANIZAÇÃO MUNDIAL DA SAÚDE)

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