Great economical solution for safe disposal of used pipettes, Petri dishes, multi-well cell culture plates, cell culture flasks, culture plates, membrane filters and other biohazard wastes. - Transparent polypropylene; 0.03mm (1.5 mil) thick - High temperature autoclavable at a maximum of 135˚C (275˚F) - Plain, non-printed bags can also be used as conventional trash can liners - Sterilization indicator patch darkens when exposed to steam sterilization for 20 minutes - Bags with biohazard warning label contain standard biohazard warning symbol and precautionary procedures in four languages: English, French, German, and Spanish" Great economical solution for safe disposal of used pipettes, Petri dishes, multi-well cell culture plates, cell culture flasks, culture plates, membrane filters and other biohazard wastes. - Transparent polypropylene; 0.03mm (1.5 mil) thick - High temperature autoclavable at a maximum of 135˚C (275˚F) - Plain, non-printed bags can also be used as conventional trash can liners - Sterilization indicator patch darkens when exposed to steam sterilization for 20 minutes - Bags with biohazard warning label contain standard biohazard warning symbol and precautionary procedures in four languages: English, French, German, and Spanish"