<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>7
<FILENAME>exb991.txt
<TEXT>






                                                  Exhibit 99.1


          Bio-Rad Laboratories, Inc.,

          CERTIFICATION  PURSUANT TO  18  U.S.C. SECTION  1350, AS  ADOPTED
          PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

          I,   Norman  Schwartz,   of   Bio-Rad  Laboratories,   Inc.  (the
          "Registrant"),  do hereby  certify in  accordance with  18 U.S.C.
          Section 1350, as adopted pursuant to Section 906 of the Sarbanes-
          Oxley Act of 2002, that:

               1.   the Annual  Report on Form  10-K of the  Registrant, to
                    which this  certificate is attached as  an exhibit (the
                    "Report"),  fully complies  with  the  requirements  of
                    section 13(a)  of the  Securities Exchange Act  of 1934
                    (15 U.S.C. 78m); and

               2.   the   information  contained   in  the   Report  fairly
                    presents,  in  all  material  respects,  the  financial
                    condition and results of operations of the Registrant.



          Dated:   March 26, 2003            /s/ Norman Schwartz
                                             Norman Schwartz
                                             Chief Executive Officer
          <page>


</TEXT>
</DOCUMENT>
