Ackers Science 50 Tube - 16x100mm Clear Plastic Test Tube Set with Caps and Rack

Size:50 Tube - 16x100mm Clear Plastic Test Tube Set with blue Caps Volume: 13ml 50 plastic test tubes with blue caps is ideal for use in many applications from laboratory testing to food?storage and beverage service Material:Test Tube is clear and it is made of laboratory grade polystyrene.Polystyrene is resistant to all kinds of alkali,salt and aqueous solutions, and is stable to low-grade alcohols and certain acids (such as sulfuric acid, phosphoric acid, boric acid, hydrochloric acid with mass fraction of 10% ~ 30%, acetic acid with mass fraction of 1% ~ 25%, and formic acid with mass fraction of 1% ~ 90%) Gas tightness:If pour liquid into the tube, the tube cover can be firm without leakage, tube gas tightness is good suitable for storage of jewelry, seeds, beads, powder, spices, liquids, etc.When teaching in school, it perfectly acts as a glass bottle Perfect for Halloween science theme party decorations; can also be used as birthday gifts these are safe for food