略語大辞典 [Med] 25 ACGIH American Conference of Governmental Industrial Hygienists アメリカ政府労働衛生技官会議. 半導体製造工場の大気中物質許容濃度リストなどを発表している.American Conference of Governmental Industrial Hygienists; since 1938; issues TLV(threshold limit value for chemical substances and physical agents in the workroom environment), an air contamination level 丸善「略語大辞典」JLogosID : 11864530