A laboratory tool designed for cleaning narrow glassware is characterized by a handle with bristles affixed to a twisted wire. These implements are specifically constructed to access and scrub the interior surfaces of items such as test tubes, graduated cylinders, and similar vessels. A common example is its use in removing residue from the inside of a test tube after a chemical reaction.
Maintaining cleanliness in laboratory equipment is paramount to ensuring accurate experimental results and preventing contamination. The utilization of specialized cleaning tools allows for the thorough removal of substances that might interfere with subsequent analyses. Historically, manual cleaning methods such as this have been essential in scientific research and quality control across various industries.