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Megabead NIST Traceable Particle Size Standards
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Packaging Size
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Nominal Size
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Size Range
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Method
: 15 ml
: 10.0 - 175.0 µm
: 9.50 - 185.00 µm
: Single Particle Optical Sensing (SPOS)
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Single Particle Optical Sensing (SPOS) is a combination of light extinction and light scattering.
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Individual particles pass through a small optical sensing region one at a time and produce a detecting pulse.
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The magnitude of the pulse depends on the size of the particle.
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The particle size distribution plot of the sample is constructed one particle at a time by comparing the detected pulse heights with a standard calibration curve based on NIST traceable particles of known diameters.
Cat#
Nominal Size
Size Range
Cat#
Nominal Size
Size Range
40.0 µm
37.00 - 43.00 µm
64235-15
175.0 µm
165.00 - 185.00 µm