Which tool is used to pick up and hold test tubes, including hot ones?

Which tool is used to pick up and hold test tubes, including hot ones?

• A. Test Tube Rack
• B. Test Tube Brush
• C. Stoddard Clamp Test Tube Holder
• D. Swab

Answer: (C)

Holding hot glass safely comes from using a tool that can securely grip a tube without transferring heat to your hand. The Stoddard Clamp Test Tube Holder is designed for this purpose: it clamps around the tube and, when attached to a stand, lets you lift, rotate, or heat the tube without directly handling it. The clamp’s jaws grip firmly and often include padding to protect the glass and prevent slipping, making it ideal for maneuvering hot or hot-and-wet tubes during experiments. By contrast, a test tube rack is for organizing or drying tubes and doesn’t provide a secure grip for moving individual tubes, a test tube brush is for cleaning the inside of tubes, and a swab is used for collecting samples.

Holding hot glass safely comes from using a tool that can securely grip a tube without transferring heat to your hand. The Stoddard Clamp Test Tube Holder is designed for this purpose: it clamps around the tube and, when attached to a stand, lets you lift, rotate, or heat the tube without directly handling it. The clamp’s jaws grip firmly and often include padding to protect the glass and prevent slipping, making it ideal for maneuvering hot or hot-and-wet tubes during experiments. By contrast, a test tube rack is for organizing or drying tubes and doesn’t provide a secure grip for moving individual tubes, a test tube brush is for cleaning the inside of tubes, and a swab is used for collecting samples.