EXHIBIT 32.1

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

I, Zackary Irani, certify that the Annual Report on Form 10-KSB for the fiscal
year ended May 31, 2004 fully complies with the requirements in Sections 13(a)
or 15(d) of the Securities Exchange Act of 1934, and that the information
contained in such Annual Report fairly presents, in all material respects, the
financial condition and results of operations of Biomerica, Inc. for the periods
being presented.

 /s/ Zackary S. Irani
 ---------------------------
 Zackary S. Irani
 Chief Executive Officer

Date: September 9, 2004