1) Нефть: American Conference of Governmental and Industrial Hygienists (An organisation that annually determines standards of exposure to toxic and otherwise harmful materials in the workroom air, commonly known as the Threshold Limit Values (TLV))
2) Химическое оружие: American Conference of Governmental Industrial Hygienists
Универсальный англо-русский словарь. Академик.ру. 2011.