Bio-Rad Laboratories, Inc. To Report Third Quarter 2005 Financial Results Thursday, November 3, 2005

HERCULES, Calif., Oct. 20 /PRNewswire-FirstCall/ -- Bio-Rad Laboratories, Inc. will report financial results for the third quarter 2005 on Thursday, November 3, 2005, after the close of the market. The company will discuss these results in a conference call scheduled for 2:00 p.m. PT (5:00 p.m. ET) that day.

Interested parties can access the call by dialing 800-706-7748 (in the U.S.), or 617-614-3473 (international), access number 85706260. The live web cast can be accessed at http://www.bio-rad.com. A replay of the call will be available at 888-286-8010 (in the U.S.), or 617-801-6888 (international), access number 28916822 for seven days following the call and the web cast can be accessed at http://www.bio-rad.com for 30 days.

Bio-Rad Laboratories, Inc. (www.bio-rad.com) is a multinational manufacturer and distributor of life science research products and clinical diagnostics. It is based in Hercules, California, and serves thousands of research and industry customers worldwide through a network of more than 30 wholly owned subsidiary offices.

Various statements made within this press release may constitute "forward- looking statements" for purposes of the Securities and Exchange Commission's "safe harbor" provisions under the Private Securities Litigation Reform Act of 1995 and Rule 3b-6 under the Securities Exchange Act of 1934. The forward- looking statements contained herein involve risks and uncertainties that could cause results to differ materially from the Company's expectations.

CONTACT: Christine Tsingos, Chief Financial Officer, or Ron Hutton,Treasurer, both of Bio-Rad Laboratories, Inc., +1-510-724-7000, orinvestor_relations@bio-rad.com

Web site: http://www.bio-rad.com/