9 Dosage dispensers, in particular disposable devices in the nature of pipette tips for laboratory use; disposable products for scientific and laboratory use, namely, sample containers in the nature of petri dishes, reaction vessels in the nature test tubes, laboratory glassware and plasticware in the nature of bottles, storage vials, spray bottles, zipper bags, laboratory test tubes, PCR test tubes and specially adapted PCR test tube accessories in the nature of PCR test tubes racks and holders, PCR test tubes adapters, bead separation block for PCR microplates, PCR tube strips with attached cap, and adhesive films; plastic laboratory devices, namely, pipette racks, test tube racks, test tube holder, test tube storage boxes, test tube stands; storage vials and tubes for scientific and laboratory use; bottle and container lids for scientific and laboratory use, namely, plastic, rubber and elastomer closures, seals and stoppers for laboratory bottles and small sample containers for testing liquids; cell culture dishes for scientific and laboratory use; vessels in the nature of laboratory glassware for scientific and laboratory use; test tubes for scientific and laboratory use; medical diagnostic test tubes