EX-12 5 dex12.txt COMPUTATION OF RATION OF EARNINGS TO FIXED CHARGES Apogent Technologies Inc. EXHIBIT 12 Ratio of Earnings to Fixed Charges 3/31/02 Six Months Ended Fiscal Year Ended September 30, March 31, ----------------------------------------------- 1997 1998 1999 2000 2001 2002 ---- ---- ---- ---- ---- ---- Fixed Charges: Interest expense 24,999 33,772 40,073 48,684 48,698 20,531 Deferred financing 152 151 224 533 563 1,741 1/3 Rental expense 1,076 1,343 2,235 3,145 3,751 2,108 ----------------------------------------------- -------- 26,227 35,266 42,532 52,362 53,012 24,380 Earnings: Pre tax income from continuing operations 73,996 86,836 127,392 144,325 180,739 98,926 Add: Fixed charges 26,227 35,266 42,532 52,362 53,012 24,380 Earnings 100,223 122,102 169,924 196,687 233,751 123,306 Ratio of Earnings to Fixed Charges 3.8 3.5 4.0 3.8 4.4 5.1 =============================================== ======== Rental Expense 3,229 4,028 6,704 9,434 11,253 6,325 =============================================== ========