In China, 120 x 240 mm specimen jars are standard laboratory glassware used for collecting and preserving biological specimens. These are typically made from borosilicate glass (Boro 3.3) for durability and chemical resistance.

Common Product Specifications

• Dimensions: 120 mm (diameter) by 240 mm (height) is a frequently listed size among manufacturers.
• Closure Types: Often feature a ground-in glass stopper with a knob to ensure an airtight seal.
• Material: Transparent glass or high-quality borosilicate glass, which is shock and impact resistant.
• Applications: Used in medical labs, agricultural science, and educational institutions for animal and plant specimen preservation.