Glass test tube, also known as culture tube and sample tube, is a common and widely used glassware, which has a finger-like length, open top and closed bottom. It can be made of soda-lime material, borosilicate glass or quartz glass. And borosilicate glass and quartz glass test tube can withstand high temperatures up to several hundred celsuis.

To suit different applications, the glass test tube can be made into multiple lengths and outer diameter. Detailed specs refer to the Table 1: Common Specs of Glass Test Tube

Glass test tube is commonly supplied in round bottom and some are flat bottom. Besides, the stopper can be plastic, cork, quartz stopper and plastic screw cap.

• Material
  • Soda-lime.
  • Borosilicate.
  • Quartz.
  • Plastic.
• Bottom type
  • Flat bottom.
  • Round bottom.
• Top type
  • Flat top.
  • Screw top.
• Stopper type
  • Cork: T shape and cone shape
  • Plastic.
  • Quartz.
  • Rubber stopper.
  • Silicone stopper.
  • Screw stopper: plastic and aluminum.
  • Feature
    • High temperature resistance.
    • Expansion resistance.
    • Explosion resistance.
    • Corrosive resistance.
    • Graduated tubes can be customized.
    • Different contents and sizes for choice.
    • Wide range of application.
    • Application
      • Test tube is widely used in the chemical and biological test for handling and culturing all kinds of organisms.
      • A test tube with a stopper is often used for temporary storage of chemical or biological samples.
      • Test tube can be heated to complete various chemical reaction.
      • Test tube can be used as cigar glass tube for cigar storage and present.
      • Test tube can be used as storage glass tube for tea, candies, condiments and other goods storage.