Test trays, especially microplates, storage plates, glass bottomed plates and bar plates; laboratory apparatus, especially carriers for laboratory plates, wafer sticks, laboratory vessels, cell culture dishes, cell strainers, cultivation containers, reaction tubes, specimen cups, plastic bottles, dosimeters, pipetting aids, petri dishes, specimen tubes, freeze bottles, freezing tubes, freezing ampoules, reagent tubules, filter tubules, centrifuge buckets, multipurpose containers, pipettes, cell scrapers, pipette tips, storage jars for dosage dispensing, filters, stoppers and shutters.