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Product Information Test the effectiveness of various commercial cleaners. Do disinfectant cleaners really work as advertised? Find out by testing five disinfectant samples against two common nonpathogenic bacterial strains. Students place disinfectant disks on a bacterial culture; if it is effective against the bacteria, a clear zone will appear around the disc. It comes with tube cultures of Bacillus subtilis and Escherichia coli, materials for six student groups, teacher’s guide, and student copymaster. Note: Coupon included for perishable materials. Redeem by mail, fax, phone, or e-mail.  Tell a Friend about this item
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