Conductive drums into which a solvent is pumped or removed must be grounded!
Electrically conductive drums are filled or emptied with a solvent-containing liquid.
Can electrostatic discharge occur as a result of filling the liquid into the container?
In the companies, the solvents or solvent-based ink are delivered in large conductive containers or barrels. When the solvent content is pumped, mixed or stirred, a good ground connection must always be made to prevent a spark discharge and fire. Since the containers are mobile, it can happen that an operator forgets to connect a grounding clamp and starts the process without grounding.