Exhibit 32.1
THE LUBRIZOL CORPORATION
Certification of Chief Executive Officer and Chief Financial Officer of
The Lubrizol Corporation Pursuant to 18 U.S.C. Section 1350
I certify that, to the best of my knowledge and belief, the Quarterly Report on Form 10-Q of The Lubrizol Corporation for the period ending June 30, 2007:
| | (1) | | fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
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| | (2) | | the information contained in the report fairly presents, in all material respects, the financial condition and results of operations of The Lubrizol Corporation. |
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| | /s/ James L. Hambrick | |
| | James L. Hambrick | |
| | Chief Executive Officer and President
August 3, 2007 | |
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I certify that, to the best of my knowledge and belief, the Quarterly Report on Form 10-Q of The Lubrizol Corporation for the period ending June 30, 2007:
| | (1) | | fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| |
| | (2) | | the information contained in the report fairly presents, in all material respects, the financial condition and results of operations of The Lubrizol Corporation. |
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| | /s/ Charles P. Cooley | |
| | Charles P. Cooley | |
| | Chief Financial Officer
August 3, 2007 | |
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