40Pcs 13x100mm Lab Chemistry Borosilicate Glass Test Tubes

Description:40Pcs 10ml 13x100mm Lab Chemistry Borosilicate Glass Test Tubes Specifications:Material: GlassSize: 13x100mmCapacity: 10mlSuitable For: Laboratory, teaching, planting, kitchen, etc.Features:1. Tube should be preheated prior to heating, or easy to burst2. Test tube holder from the tube should be caught in the mouth of one third place3. Loading solution should not exceed 1/2 of the tube, heating capacity should not exceed 1/3 of the tube4. Test tube with a dropper to add liquid should be dropped vacant, it may not extend into the tube5. Not immediately cooled after heating, to prevent burstPackage Includes:1x 40pcs Glass TubesMore Details: