40Pcs 13x100mm Lab Chemistry Borosilicate Glass Test Tubes

Description: 40Pcs 10ml 13x100mm Lab Chemistry Borosilicate Glass Test Tubes Specifications: Material: Glass Size: 13x100mm Capacity: 10ml Suitable For: Laboratory, teaching, planting, kitchen, etc. Features: 1. Tube should be preheated prior to heating, or easy to burst 2. Test tube holder from the tube should be caught in the mouth of one third place 3. Loading solution should not exceed 1/2 of the tube, heating capacity should not exceed 1/3 of the tube 4. Test tube with a dropper to add liquid should be dropped vacant, it may not extend into the tube 5. Not immediately cooled after heating, to prevent burst Package Includes: 1x 40pcs Glass Tubes More Details: