1. The measuring (or graduated) cylinder .
This is for measuring out approximate volumes of liquids. It is graduated in cubic centimeters or milliliters. It comes in various sizes ;5ml, 10ml, 50ml, 100ml, 250ml, 1000ml and 2000ml.
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| Picture : Measuring (Graduated) Cylinder. |
Caution! For all liquids, except mercury, the correct reading is taken at the bottom of the curved liquid surface. For mercury the correct reading is taken at the top.
2. The burette.
This is a glass vessel that delivers small volumes of liquid up to usually, 50 cm3. For greater accuracy, it is long and thin and graduated in milliliters. Readings are always taken at the level of the bottom of the meniscus.
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| Picture : Burette |
3. A Pipette
A pipette is used to transfer a measured volume of liquid from one container to another.
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| Picture : Pipette |
It is similar to pipette, but is used to inject a known volume, such as 5ml, of a particular liquid medication.
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| Picture : Many types of syringes |
5. Volumetric Flask.
It holds a fixed volume of liquid when filled up to the mark on the neck.Each of the above pieces of measuring apparatus comes in different sizes.
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| Picture : Different size of volumetric flask |
