June 28, 1949 -	The Manufacturing portion of Refinery Supply was split off as a separate business and incorporated as Refinery Manufacturing
August 5, 1953 -	Refinery Manufacturing was changed to Chandler Engineering by A.W. (Bill) Chandler, President
February 1981 -	Chandler Engineering is acquired by EG&G
September 1987 -	UGC Industries of Shreveport, Louisiana is acquired by EG&G and is combined with Chandler Engineering
November 1987 -	Ranarex® is acquired from Hach Company and moved from Loveland, CO to Tulsa
Late 1989 -	The Carle chromatograph product line is acquired from Hach Company and moved from Loveland, CO to Tulsa
February 1997 -	Chandler Engineering is acquired by private investors and restructured as Chandler Engineering LLC
August 1998 -	Chandler Engineering acquires the product lines from Larson Engineering of Broken Arrow, OK
August 2001 -	Ruska Instruments Corporation phase behavior product lines were acquired from the Truck Group by Chandler Engineering LLC and relocated from Houston, TX to Broken Arrow, OK
April 2002 -	Chandler Engineering ownership is restructured under a separate parent company named Chandler Instruments LLC. Chandler Instruments LLC acquires Grabner Instruments GmbH of Vienna, Austria and Petrolab Company of Albany, NY
August 2003 -	Chandler Instruments LLC is acquired by AMETEK
September 2005 -	AMETEK acquires the product lines of Quizix Incorporated and relocates to Oklahoma as part of Chandler Engineering