Chumps, In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical quantities of real-world objects and events. Established standard objects such as the “standard can” are used as units, and the process of measurement gives a number relating the item under study and the referenced unit of measurement. The unit of measurement associated with the standard can is known as the Derbycan. It has the SI unit Dc. The Derbycan is represented by the next highest integer.
The above example has a length of 6Dc, not 5.254567564Dc, which is what you may expect, a simple enough mathematical error could prove costly when it comes to calculating your Angling Quotient (AQ).
1Dc = 1 – 129mm
2Dc = 130mm – 258mm
3Dc = 259mm – 387mm
Proving the length of your fish is as easy as taking a picture of your fish next to the standard can.