Thick Graduated Measuring Cylinder Brushes Review

Damn good price. You can tell it's cheaper glass, there's some variation in it, but it doesn't seem to affect the measurements. Everything looked fine. Even the droppers are made of glass, two of them are very thin and the third one is very strong. Everything is easy to read. It comes with two cleaning brushes (I think that's what they're for). A small concern is that it was marked MADE IN CHINA and when I opened the box all the glass and accessories were covered in white powder. There's…

Good packaging, thick glass, better accuracy than advertised, brush included. At the same time, I don't want to assume that they correspond to "class A" of a well-known brand, cylinders cost several (maybe 10?) Times more. I can't compare it to a 'good' cylinder but I would expect a branded product to have better quality control. The markings on my kit are less sharp and clear on some cylinders than others. This is not striking, but shows the production conditions that are necessary to achieve…

Cylinders are excellent, very happy with them; everything arrived intact, the cylinders are thick and strong, they withstand extremes of temperature that soda-lime glass would hardly withstand, they appear to be made of good borosilicate 33, and the graduations are at least as accurate as I need them to be. I've used them nine days out of nine since I received them with several different organic solvents and strong acids and to measure chemicals over a fairly wide temperature range (about 290°K