Measurement beaker

摘要

The beaker (1) is open at the top with a pouring spout (9) and has an interchangeable transparent insert with an openings. The insert can be a plastic bag and the beaker can have a measurement scale (11) on one side wall. The bag can be resistant to acids and solvents. A bottom opening at the front of the beaker can form the coupling to a matching fitting on a tool e.g. a spray gun. The lower opening in the insert can be a nozzle, either as part of the bag or as an attachment which can form a sealed coupling with the tool union and the nozzle can be closed by a valve. All openings in both beaker and bag can be sealed by some form of closure.