5-2 Professional advice

 
Unfortunately, materials that are resistant to a wide range of chemicals are scarce and expensive, so materials with good potential for general use and at a reasonable cost are selected for the interior walls of fume hoods.
 
Experiments involving thermal decomposition which hydrochloric acid, sulfuric acid, perchloric acid or the like will affect especially the inner wall material, and sometimes the joint material is also corroded leading to the corrosion of the interior.
 
Depending on the manufacturer, the inner wall material can also be exchanged.
 
If corrosion is found, consult the fume hood manufacturer through the laboratory managers and facility administrators.
 
At that time of consultation, convey exactly what kind of chemicals were used on the experiment and what kind of work was performed.
 
 
This is because, depending on the situation, if changing the material is not done, the same problem might happen again.