A joint size, particularly referring to ground glass joints commonly used in laboratory glassware, is described by a number indicating its dimensions. According to the reference material, a joint size takes the form of xx/yy.
- xx: Represents the width or outer diameter of the ball (or outer part) of the joint in millimeters.
- yy: Represents the inner bore or internal diameter (the opening) of the joint, also in millimeters.
For example, a 12/2 joint indicates that the ball has a 12 mm width, and the hole (bore) through the joint is 2 mm in diameter.
Understanding Joint Sizes
Joint sizes are crucial for ensuring compatibility when connecting different pieces of glassware in a laboratory setup. Choosing the correct joint size ensures a secure and leak-proof connection.
Examples of Joint Sizes:
| Joint Size | Ball Width (mm) | Bore Diameter (mm) |
|---|---|---|
| 14/20 | 14 | 20 |
| 24/40 | 24 | 40 |
| 19/22 | 19 | 22 |
These dimensions are essential for selecting the appropriate glassware components for experiments and setups.
