Test Tube Holder Definition
The Test Tube Holder is used to fix test tubes. It is used to hold the test tube in place when it is hot or should not be touched. For example, test tube racks can be used to hold test tubes in place while heating. In addition, when the test tube is heated with liquid or solid, the holder must tightly fix the test tube on the test tube. Secure firmly when heated.
Specifically, for liquid heating, when placing a test tube holder with test tubes, hold it so that it is aligned with the laboratory bench and face the open end of the test tube toward yourself or anyone nearby.
Test Tube Holder Function
Test tube racks designed to hold test tubes in place, but they can used to hold pipettes and moving rods, and test tube racks can hold multiple test tubes. Some test tube racks can hold up to 40 test tubes. Other racks also designed to store test tubes and hold a large number of test tubes for a longer period of time.
There are many different types of test tube racks. These also commonly referred to as test tube racks. They are composed of various materials, such as wood and plastic, and their intended function. Some racks equipped with spokes that allow users to turn clean test tubes upside down so that they can dry.
There are many other accessories that are useful when using test tubes. For example, a test tube brush is essential for cleaning dirty test tubes. There are also test tube clamps, which can protect your hands from holding test tubes that are too hot. The test tube sometimes uses rubber stoppers to ensure that the substance remains in the test tube and allows the user to move the test tube when needed. There are even crayons specially designed for writing on glass, which are perfect for marking test tubes.
Test Tube Holder Uses
Safety in Performing Experiments
Many science fair projects use test tubes in various ways. Since the test tube cannot stand on its own, an assistant often needed to conduct experiments. One person can do many experiments through a test tube rack. It is also safe for pressure experiments, such as bursting cork or blistering reactions, where the instructions say “Do not point the test tube towards your face or anything else” because the test tube rack will point the test tube straight up. You can also make a xylophone with a test tube filled with water.
Test Tube Holders as General-purpose Grabbers
Since clip-on stands spring loaded to lock items in place, they are an easy-to-set up science fair booth. The wooden version can use as a clip to fix things together or support hanging objects such as display boards. Together with easels, they can help improve standing page-turning presentations. The metal version can help you remove the test objects from the immersion bath or place them on the flame. They allow a safe distance between the hand and the object held.
Test Tube Holders Support Classroom Activities
The single-row rack is very suitable for classroom to set with plants and cuttings in test tubes. They are suitable for long-term experiments with side-by-side such as measuring water absorption or the influence of different routing solution formulas. Two tubes with different food colorings and separate the stems of the white carnation flowers so that each solution has one side. When the flower absorbs the dye, the shelf supports the tube.