Material: PS. Sterile Untreated surface. Manufactured according to ANSI/SBS standards 1 to 4-2004 to ensure compatibility when carrying out manual processes and, in particular, automatic processes. Properties of BRAND plates ® microtiter plates: 96 well standard format Alphanumerically coded Free of endotoxins, DNase, DNA, RNase, non-cytotoxic Properties of the pureGrade™ microtiter plates: Chimney-shaped cavities Colour code: grey for standard plates F-profile (flat bottom shape) for precision optical measurements Microtitration plates pureGrade™ F-bottom, transparent, sterile Transparent bottom in F-profile (flat bottom shape) for precise optical measurements. Sterilised through β-irradiation. Ideal for bacteriological assays. Delivery incl. lid.