apparatus
used to chemical test
condenser
this is a laboratory apparatus, usually use in holding substances. for example test tube...
The test tube holder has many functions. It can be used to hold test tubes, making it easy to investigate the contents of the test tubes. These holders can also be used to hold stirring rods used in the laboratory and pipettes.
crucible tong iron stand iron ring Bunsen burner
the answer is none
This really isn't something that requires an instruction manual ― it's a cork. You place it in a test tube if you intend on shaking the contents. How do you use it? Again...not a complicated process. Fit it inside the test tube.
beaker crucible watch glassmortar and pestle evaporating dish plastic pipetfunnel ring stand erlenmeyer flaskrubber stopper pH paper test tube holderclay triangle crucible tongs scoopulabunsen burner test tube brush beaker tongsthermometer wire gauze innoculating looptest tube rack buret graduated cylindertest tube clamp ring clamp triple beam balanceforceps buret clamp stirring rodgoggles filter paper test tubewell plate lab apron strikerrubber tubing glass plate weighing boatlitmus paper wooden splint volumetric flaskelectronic balance dropper bottle
A test tube rack.
Test Tube brushes are used to easily clean the test tubes .
examples of porcelain laboratory apparatus