Wool measurement
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A micron is the measurement used to express the diameter of wool fibre. Fine wool fibers have a low micron value. Fibre diameter is the most important characteristic of wool in determining its value.
An ultra-fine, 14.6-micron Merino fleece.
Micrometre
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The micrometre is a unit of length in the International System of Units equalling 10−6 metre; that is, one millionth of a metre. It is also known as the micron.
Wool measurement
…A micron (micrometre) is the measurement used to express the diameter of wool fibre. Fine wool fibers have a low micron value. Fibre diameter is the most important…
A 6 μm diameter carbon filament above a 50 μm diameter human hair
How big is 1 micrometre?