Micronic, Lelysted, the Netherlands, offers 0.75 ml and 1.40 ml amber-tinted polypropylene storage tubes that ensure the integrity of light-sensitive biological samples even over long-term storage periods. The tubes are manufactured from special amber-colored material, eliminating sample degradation from exposure to light while still permitting visual checking of the enclosed sample volume. Used in conjunction with a secure screw cap or push cap, the tubes are available in non-coded and laser-encrypted 2D-coded formats. Tubes are supplied in a 96-position storage rack, and are compatible with most automated sample-handling systems. Produced from high-quality polypropylene in a certified class 7 cleanroom environment, the tubes resist most organic solvents (DMSO, methanol, dichloromethane). For more information, visit Micronic.