AS 90-007

		AS 90-007 07/11/91 Order In the Matter of: PETITION OF QUANTUM CHEMICAL CORPORATION, USI DIVISION for an Adjusted Standard from 35 ILL. Adm. Code 720.130
		AS 90-007 12/20/90 Order In the Matter of: PETITION OF QUANTUM CHEMICAL CORPORATION, USI DIVISION for an Adjusted Standard from 35 Ill. Adm. Code 720.130