5-1 Professional advice
There are different kinds of materials for the working surface of the fume hood.
For example, working surfaces made of ceramic are resistant to a wide range of chemicals, but they are extremely weak against hydrogen fluoride.
In this way, it is important to understudy the material, and know its properties as it is used.
Air guides called air foils may be installed in front of the work surface.
Because this airfoil is located outside the working area of fume hood, there are many manufacturers that do not apply special chemical treatment to it.
If chemicals spill to the floor or on the front part of the fume hood other than the front sash, or if the corrosion is severe, also consider devising the experiment procedure and the method of operation.
As it stands, operators are in danger of having a source of chemicals on the outside of the fume hood.
The airfoil part can be changed as well.
5-1 Advice for
Inital support/correspondence
If the fume hood is severely corroded and affects research or experimental work, or if the fume hood itself is difficult to maintain, consult fume hood manufacturers through the laboratory manager or the equipment administrator.
If damage to the outside of the fume hood is severe, review of work procedures should also be considered.
