Before use, it must be cleaned, dried and laid flat. Then, fill the solution slightly above the scale line of the required volume, and slowly pour out the excess until the lower edge of the meniscus of the solution is exactly at the edge of the scale line of the required volume. This is the volume to be measured. When the solution is poured out of the cylinder, it should be poured slowly from the mouth. Finally, the mouth of the cylinder should be in contact with the wall of the receiving vessel to remove the last solution. Before use, it must be cleaned, dried and laid flat. Then, fill the solution slightly above the scale line of the required volume, and slowly pour out the excess until the lower edge of the meniscus of the solution is exactly at the edge of the scale line of the required volume. This is the volume to be measured. When the solution is poured out of the cylinder, it should be poured slowly from the mouth. Finally, the mouth of the cylinder should be in contact with the wall of the receiving vessel to remove the last solution.

Before use, it must be cleaned, dried and laid flat. Then, fill the solution slightly above the scale line of the required volume, and slowly pour out the excess until the lower edge of the meniscus of the solution is exactly at the edge of the scale line of the required volume. This is the volume to be measured. When the solution is poured out of the cylinder, it should be poured slowly from the mouth. Finally, the mouth of the cylinder should be in contact with the wall of the receiving vessel to remove the last solution. Before use, it must be cleaned, dried and laid flat. Then, fill it to a level slightly above the required volume mark, and slowly pour out the excess until the lower edge of the meniscus of the solution is exactly at the edge of the required volume mark. This is the volume to be measured. When the solution is poured out of the cylinder, it should be poured slowly from the mouth. Finally, the mouth of the cylinder should be in contact with the wall of the receiving vessel to remove the last solution.