Symbol 2734 from ISO 7000 - Title/Meaning: Washing solution 
Function/description: Indicates materials, solvents, or a mixture of these, used to wash and clean substrates or dampening, inking, coating rollers or devices, or washing devices.
Own work using: iso.org/obp/graphics/grs/deaae0f8-4b8f-4289-9122-4f20c4df68eb 200.png
Vectorization:  Mrmw