Apogent Technologies Inc.																	EXHIBIT 12
Computation of Ratio of Earnings to Fixed Charges
(in thousands, except ratios)
	Twelve Months Ended June 30,		Nine Months Ended June 30,				Years Ended September 30,										ProForma Nine Months Ended June 30,		ProForma Year Ended September 30,
	2003		2003		2002		2002		2001		2000		1999		1998		2003		2002
	(unaudited)												(unaudited)		(unaudited)		(unaudited)
Fixed Charges:
Interest expense	$	42,313	$	32,427	$	30,851	$	40,737	$	48,820	$	49,584	$	41,228	$	35,270	$	44,615	$	56,987
Deferred financing		3,590		2,809		2,680		3,461		472		521		224		151		2,809		3,461
1/3 Rental expense		4,725		3,536		3,278		4,467		3,575		2,905		2,235		1,343		3,536		4,467
	$	50,628	$	38,772	$	36,809	$	48,665	$	52,867	$	53,010	$	43,687	$	36,764	$	50,960	$	64,915
Earnings:
Pre tax income from continuing operations	$	201,161	$	144,791	$	148,941	$	205,311	$	166,894	$	134,759	$	119,333	$	85,789	$	136,754	$	189,061
Add: Fixed charges		50,628		38,772		36,809		48,665		52,867		53,010		43,687		36,764		50,960		64,915
Earnings		251,789		183,563		185,750		253,976		219,761		187,769		163,020		122,553		187,714		253,976
Ratio of Earnings to Fixed Charges		5.0		4.7		5.0		5.2		4.2		3.5		3.7		3.3		3.7		3.9
Rental Expense	$	14,177	$	10,608	$	9,833	$	13,402	$	10,725	$	8,716	$	6,704	$	4,028	$	10,608	$	13,402