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单词 Test tube brush
释义

Test tube brush

英语百科

Test tube brush

Laboratory test tube brushes: small sized brushes on the left, large sized brushes on the right.
Small test tube brush fitting compared to a regular laboratory test tube.
Demonstration of test tube cleaning by using a small sized test tube brush.

A test tube brush is a brush used for cleaning test tubes and narrow mouth laboratory glassware, such as beakers and flasks. It is composed of nylon, synthetic, or animal fur bristles of various diameters lined against a rather sturdy wire handle with a looped end for hanging. The wire can be made from a wide range of metals, such as aluminium, bronze, beryllium, copper, and brass. FDA grade brushes are designed to be resistant to acid and other corrosive chemicals, including aromatic and aliphatic hydrocarbons, ketones, ethyl acetate esters, trichloroethylene, and hot water.

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