1 particle >10 micron per milliliter
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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μm
micron (micro-meter).
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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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CLEAN FLUID
100 particles >10 micron per milliliter
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AGGLOMERATION
The potential of the system for particle attraction and adhesion.
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ISO SOLID CONTAMINANT CODE (ISO 4406)
A code assigned on the basis of the number of particles per unit volume greater than 5 and 15 micrometers in size. Range numbers identify each increment in the particle population throughout the spectrum of levels.
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FATIGUE PLATELETS
Normal particles between 20 and 40 microns found in gear box and rolling element bearing oil samples observed by analytical ferrography. A sudden increase in the size and quantity of these particles indicates excessive wear.
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EROSION
The progressive removal of a machine surface by cavitation or by particle impingement at high velocities.
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