CHATSWORTH, Calif.--(BUSINESS WIRE)--April 6, 2006--IRIS International, Inc. (NASDAQ: IRIS - News), a manufacturer and marketer of automated IVD urinalysis systems and medical devices used in hospitals and clinical reference laboratories worldwide, today announced the appointment of Stephen E. Wasserman, a seasoned executive with expertise in the medical devices and diagnostics industry and key skills in strategic management and corporate finance, to the Company’s Board of Directors.