micron (micro-meter).
Related Terms |
MICROMETER (μm)
A unit of length. One millionth of a meter. Also known as micron. 1 Micrometer = 39 millionths of an inch (.000039 inch). Contaminant size is usually described in microns. Relatively speaking, a grain of salt is about 60 microns and the eye can see particles to about 40 microns. Many hydraulic filters are required to be efficient in capturing a substantial percentage of contaminant particles as small as 5 microns.
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SUPERCLEAN FLUID
10 particles >10 micron per milliliter
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ANGSTROM
A unit of length, used especially in expressing the length of light waves, equal to one tenthousandth of a micron or one hundred millionth of a centimeter.
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MICRON
One millionth of a meter, or 0.000039 in. or 1/25400 in The diameter of dust particles is often expressed in microns.
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SILT
Contaminant particles 5 μm and less in size.
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CLEAN FLUID
100 particles >10 micron per milliliter
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ULTRACLEAN FLUID
1 particle >10 micron per milliliter
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