CR1496: Polypropylene square 96-deepwell microplates • made from polypropylene (by HJ-bioanalytik) • square wells of 8x8 mm, 40 mm deep • round bottom • volume per well: 2.2 ml • recommended culture volume: 0.5 ml • typical shaking conditions: 300 rpm/50 mm • top surface: flattened/polished by Enzyscreen • detoxified (removal of leachables) by Enzyscreen in 0.1 M NaOH and HCl respectively (4 hours each) • very strong plate, can be re-used many times • long "track record" for cultivation purposes: has been used by many research groups for many years (both for microbial strains and animal cells) • autoclavable (with sandwich cover on top, if desired)

CR1496c Polystyrene transparent square 96-half-deepwell microplates • made from pure (no additives used) transparent polystyrene. • square wells of 8x8 mm, 17 mm deep • pyramid bottom for easy centrifugation of cells (pellet in centre well) • volume per well: 1.1 ml • recommended culture volume: 0.3 ml • typical shaking conditions: 225 rpm/50 mm, or 300 rpm/25 mm • individually wrapped/sealed in polyethylene foil • gamma irradiated • packed in boxes of 20 • single use (non-autoclavable)

CR1496b: Polypropylene square 96-deepwell microplates • made from "natural" polypropylene (by Greiner) • square wells of 8x8 mm, 40 mm deep • round bottom • volume per well: 2.2 ml • recommended culture volume: 0.5 ml • typical shaking conditions: 300 rpm/50 mm • top surface: flattened/polished by Enzyscreen • autoclavable (with sandwich cover on top, if desired)

CR1496a: Polypropylene square 96-deepwell microplates • as CR1496 , but with 4 cavities to fit covers with pins • also suitable for covers CR1296b, CR1296c, CR1396b, and CR1396c (which have pins at the inside to hold the silicone layer up at all times: especially for robotic applications)