A 20 micron particle is not visible with the naked eye. The smallest particle visible to the naked eye is 40 microns. To give you some perspective, a piece of hair's width can range from 40 to 120 microns.
Yes, you can see a 200 micron particle.
A 5 Micron is more fine then a 20 Micron, It means, if a particle has a thickness of 1 micron. only 5 numbers of particle can be passed through a 5 Micron filter at a time while 20 numbers of Particle can be passed through a 20 Micron filters. the 5 Micron is more efferent to the 20 Micron.
A micron is a millionth of a metre. So 0.2 micron = 7.87*10-6 inches.
Micron (the correct word is micrometer) is not a particle; the micrometer (μm) is a unit of measure for length. 1 μm = 10-6 m
less than200micron
It is a micrometre; one millionth of a metre.
Filter is a finer version of strainer or strainer is a coarser version of filter. If particle size to be filtered>200 mesh, then its the job of strainer If particle size to be filtered<200 mesh, then its the job of filter
mesh 500 micron=31 inches=0.0012
27/200 millimetres or 0.135mm
No. of openings per square inch of wire mesh is specifies the mesh size and its again depends on wire dia also. If the number of openings per square inch is more then partical size which it can pass through the filter will be less. For example for 325 mesh size, where in 44 micron size of particle can get filter. In 200 mesh size 74 micron size of particle will get filter.
See this link.
100 Micron100 Micron's = 0.1 millimeter, about the width of a human hair.
It shows the cleanness of oil as available minimum particle /100 ml oil sample. size of 5 to 10 micron particle is commended as less as possible. We are using fuel in aeroplane jet engine under 5-10 micron particle available 2 or less means fuel has cleanliness class NAS 2 or less. National Aerospace Standard (NAS)