Table II.

Results of Polystyrene Standard Measurements with MFI4100, MFI5200, FlowCAM VS1, and FlowCAM PV

Standard type	Specification	MFI4100	MFI5200	FlowCAM VS1	FlowCAM PV
5 μm count standard	3,000 ± 300 part./mL (>3 μm)a	2,906 ± 324 part./mLc	3,203 ± 116 part./mLc	2,779 ± 162 part./mLc	2,974 ± 184 part./mLc
2 μm size standard	1.999 ± 0.020 μmb	1.74 ± 0.28 μmd	1.95 ± 0.35 μmd	3.20 ± 1.39 μmd	2.38 ± 0.90 μmd
5 μm size standard	4.993 ± 0.040 μmb	5.10 ± 0.80 μmd	5.12 ± 0.57 μmd	5.94 ± 1.61 μmd	4.66 ± 1.52 μmd
10 μm size standard	10.00 ± 0.08 μmb	10.56 ± 1.22 μmd	10.16 ± 1.16 μmd	10.71 ± 2.41 μmd	9.66 ± 1.43 μmd

^aBased on light obscuration

^bBased on microscopy

^cStandard deviation from three measurements

^dFull peak width at half of the maximum height