This object can hold some otters laboratory object, so you only have to put the laboratory objects in each hole.
Never put your face directly over the test tube. Use your hand to fan the air above the test tube toward you and smell that way.
A test tube brush is a long thin brush with an extended handle. It is made for cleaning the thin tubes.
A test tube cleaner is used as suggested -- it is used to clean test tubes. It is round, and has a modestly long handle so the bristles can reach the bottom of the test tube being cleaned.
When heating a test tube, you would use a test tube holder. It can also be used to hold/ support pipettes, etc. http://www.answers.com/mt/test-tube-holder
When heating a test tube over a Bunsen burner, you typically use heat-resistant gloves to handle the test tube, a test tube holder to hold the test tube, and a Bunsen burner for heating. It's also important to have a heat-resistant mat or pad to place the test tube on while heating.
Test tube holder with spring clamp Test tube rack Test tube clamp attached to a retort stand G-clamp to secure the test tube holder to a stable surface Tongs with rubber-coated ends for handling the test tube safely in the boiling water.
Test tube racks are used to support the test tubes but unlike the test tube holder, it can store the test tubes without anyone who will hold the rack... hope this helps!
First, always point the test tube away from yourself and others to prevent any splattering of hot liquids. Second, use a test tube holder to handle the test tube as it becomes very hot, preventing burns.
Holding test tubes vertically so that the contents do not spill out.
When heating test tubes safely in the laboratory:Never leave the test tube stationary in the flame. Move the test tube constantly in and out of the flame.Never point the opening of the test tube towards your face or body; towards a walk way where somebody may walk past; or towards any other person or work station.Point the opening of the test tube along an unoccupied bench area or wall or dead space where nobody walks.You will feel the contents of the test tube heating because the test tube will start to vibrate as the contents heat - take extra care.The bigger the test tube the safer it is. Larger test tubes will be less likely to spray their hot contents out than smaller test tubes.Always wear safety goggles when heating a test tube.Take your time, don't be in a hurry. Carefully wave the test tube in and out of the flame and you will have safe heating of its contents.
When heating a test tube, one should always use a test tube holder. This provides a secure grip on the hot test tube and prevents accidental burns or spills. It is essential for handling hot glassware safely in the laboratory.
for test tube you will need a test tube holder , and for hot glassware you will need a crucible tongs. Enjoy