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<PAGE>
Exhibit 12
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PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES
Computation of Ratio Of Earnings to Fixed Charges
(Dollars in Millions)
<TABLE>
<CAPTION>
Year Ended December 31, Six Months
----------------------------------------------------- Ended
1995 1996 1997 1998 1999 June 30, 2000
---- ---- ---- ---- ---- -------------
<S> <C> <C> <C> <C> <C> <C>
Earnings:
Earnings before income taxes and net earnings in
equity affiliates $ 1,231 $ 1,221 $ 1,165 $ 1,264 $ 945 $ 583
Plus:
Fixed charges exclusive of capitalized interest 107 118 128 135 164 106
Amortization of capitalized interest 12 13 13 12 10 5
Adjustments for equity affiliates 14 15 14 16 16 7
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Total $ 1,364 $ 1,367 $ 1,320 $ 1,427 $ 1,135 $ 701
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Fixed Charges:
Interest expense including amortization of debt
discount/premium and debt expense $ 85 $ 96 $ 105 $ 110 $ 133 $ 87
Rentals - portion representative of interest 22 22 23 25 31 19
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Fixed charges exclusive of capitalized interest 107 118 128 135 164 106
Capitalized interest 9 12 10 9 11 8
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Total $ 116 $ 130 $ 138 $ 144 $ 175 $ 114
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Ratio of earnings to fixed charges 11.8 10.5 9.6 9.9 6.5 6.1
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</TABLE>
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