Test tubes with a rim measuring 16 x 125mm manufactured in China are widely available through wholesale platforms and global laboratory suppliers. These tubes are typically made from Borosilicate 3.3 glass to ensure heat and chemical resistance.

Product Specifications

• Dimensions: 16mm outer diameter (OD) x 125mm length.
• Material: Most frequently Borosilicate glass (reusable) or soda-lime glass (often disposable).
• Capacity: Approximately 14ml to 18ml, depending on wall thickness.
• Features: Round bottom with a beaded/straight rim to facilitate pouring and secure capping.