Application is an unknown amount of fluid dispensed and the volume is measured. Then the measuring device is drained or “reset” for the next “charge”. The idea of not using a regular graduated cylinder is to ensure the liquid cannot be spilled. The system is “closed”, except for vertical vents that allow air to escape but not the liquid displacing it.
Edit: this?
Burette, 100ml - Class A, DIN 385 Compliant, Borosilicate Glass with Glass Key Stopcock, 0.05ml Graduations - Eisco Labs
https://www.amazon.com/dp/B07D9M6VM...t_i_0CJESYRR27JSN40Y3DCB?_encoding=UTF8&psc=1
That’s what I had thought originally. The package was so large, I couldn’t imagine what was in it until I opened it up. It’s a wee bit taller than a 100 ML graduated cylinder next to it but is graduated in .05ml vs 1ml
Despite it having higher resolution than I need (to the ML would be fine), numbered backwards for my needs and being skinny and taller than I would really like, it is painfully slow to drain.
I thought about taping off a few inches below the valve and sand blasting off the tiny tip of the blue one and seeing if that will work. If I can get it to drain 10 ml/second, it should work.
I bet what I am looking for is out there, I just don’t know what it’s called. I figured, we have such a diverse group, someone might clue me into something I have yet to see.
I have even thought about just getting Pyrex tubing, machining a block of aluminum for the tube and a couple O-ring’s, with a bottom that will drain it. At that point I could add my own graduations but would hate to go through the work then stumble across the same thing.