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Bradford Count
Method of assessing fineness of wool From Wikipedia, the free encyclopedia
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The Bradford Count, also known as the English Worsted Yarn Count System or Spinning Count, is a traditional British method of assessing the fineness or fibre diameter of wool.[1]: 729 It is named after the city of Bradford in West Yorkshire.
 | It has been suggested that Spinning count be merged into this article. (Discuss) Proposed since August 2025. |
 | This article needs additional citations for verification. (May 2021) |
To measure the fineness of sheep wool fibre before microscopes and lasers were used, English wool handlers in the city of Bradford described wool by estimating (with experienced eyes) how many 560-yard (512 m) hanks of single-strand yarn could be made by a good spinner from a pound (0.436 kg) of "top" (cleaned combed wool with the fibres all parallel). The finer the wool, the more hanks could be spun: from a pound of "62s," for example, sixty-two such hanks could be made.[2] Bradford Count values usually vary between 28s for coarse wools to 70s for very fine ones.[1]: 730 A table of equivalences with the modern system of measuring diameters in microns was published by the International Wool Secretariat in 1970 or 1990:[1]: 730
The Bradford System is widely used among shepherds and breed associations. In 1968, the United States Department of Agriculture issued official standards (for the U.S. only, not applicable worldwide) which assigned ranges of average fibre diameter (AFD) and maximum standard deviation to each of the Bradford counts. For example, wool with average fibre diameter in micrometres from 28.60 to 30.09 was to be called "54s." [3]
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