Olympus Multiwell Plates are offered in 6, 12, 24, 48 and 96-well formats and are available tissue culture treated or non-treated. Plates have striation free, completely flat well surfaces that maximize usable growth area. Each well is labeled with easy to read alphanumeric markings and features a raised rim that nests into molded condensation rings on the single position lid to reduce evaporation and prevent cross contamination between wells. Plates feature serrated edges for easy handling and an exterior stacking ring on the lid for added stability and ease of interlocking stacked plates. All plates are supplied with lids and are packaged in durable paper/plastic hermetically sealed pouches. Plates are lot number traceable, sterilized by gamma irradiation and certified RNase, DNase and Pyrogen Free. Olympus Tissue Culture plates are manufactured in a class 100,000 clean room facility in compliance with ISO 9001:2008 and EN ISO 13485:2003/AC:2007. They are made from the highest quality 100% USP VI crystal class virgin polystyrene to eliminate all extraneous materials, ensure the integrity of your cells and offer exceptional transparency and observability. Olympus products are certified DNase, RNase Free, Non-Pyrogenic and are sterilized by Gamma Irradiation.