Dipstick

A dipstick is one of several measurement devices.

Some dipsticks are dipped into a liquid to perform a chemical test or to provide a measure of quantity of the liquid.

Since the late 20th century, a flatness/levelness measuring device trademarked "Dipstick" has been used to produce concrete and pavement surface profiles and to help establish profile measurement standards in the concrete floor and paving industries.

Testing dipstick

A testing dipstick is usually made of paper or cardboard and is impregnated with reagents that indicate some feature of the liquid by changing color. In medicine, dipsticks can be used to test for a variety of liquids for the presence of a given substance, known as an analyte. For example, urine dipsticks are used to test urine samples for haemoglobin, nitrite (produced by bacteria in a urinary tract infection), protein, Nitrocellulose, glucose and occasionally urobilinogen or ketones.

They are usually brightly coloured, and extremely rough to touch.

Measuring dipstick