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Webster describes a micron as:
A metric unit of measure used to describe the size of molecules,
colloidal particles, and other microscopic objects.
A micron or micrometer is equal to 0.000001 meter or 1/25400 inch. |
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| What types of objects are measured
in 1 millionth of a meter? |
OBJECT
Viruses
Asbestos
Paint Pigment
Bacteria
Yeast
White Blood Cell
Pollen
Pin Point
Human Hair
Silica Sand |
MICRON SIZE
.01 - .1 microns (requires nanofiltration to remove)
.08 - .8 microns (requires nanofiltration to remove)
1 .5 microns
.5 - 50 microns
2 -15 microns
25 - 30 microns
10 - 90 microns (limit of unaided detection)
75 microns
80 - 100 microns
100 - 200 microns |
KEEP THIS IN MIND
When ordering a filter, first know what you want to filter out, then
size accordingly.
It's a common mistake to size smaller than what is actually needed.
This results in:
1. Higher initial cost.
2. More maintenance.
3. More frequent filter changes or backwashing.
4. More removed particulate = greater volume of particulate
to dispose of. |
| Many times a mesh micron or decimal
inch rating is required. The following chart converts the most common
sizes. |
Mesh
600
325
200
100
80
60
40
20
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Micron
25
44
74
149
177
250
400
840
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Inches
.001
.0017
.003
.006
.007
.010
.016
.033
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