Test Tube Without Rim,16*50

Product Description

• Test tubes are longer than they are wide. 
• They can be between 50 mm to 250 mm in length and 13 and 20 mm in width. 
• Test tubes are transparent, which allows users to see what's happening inside. 
• The narrow top opening of a test tube makes it easy to pour and mix liquids. 

• Test tubes are used for chemical reactions, heating solutions, and growing organisms. 
• In medical labs, test tubes are used to collect and preserve body fluids like blood and urine. 
• Test tubes are also known as culture tubes or sample tubes. 

• Test tubes are usually made of glass or plastic. 
• Glass test tubes are often made from borosilicate glass, which is heat resistant.