Deuce Bigalo

Glossary

FD:  Fibre Diameter, usually described as FD or Micron, is the average thickness of individual wool fibres.  Measured in µm (micrometre / micron).

SD:  Standard Deviation, a measure of the dispersion of individual results.  Standard Deviation is measured in the units of measurement. 

CV:  Coefficient of Variation, is a statistical measure of the variation within a range of values.  It expresses the Standard Deviation (SD) as a percentage.  The higher the CV value, the greater the variability.

Comfort Rating:  This is the percentage of fibres finer than 30µm in a sample.  100% is optimal for against-skin wool apparel.  Sometimes shown as "Comfort Factor" or FCF.