Polystyrene Microspheres

I. Description
The scale measurement of polystyrene microspheres is not only precise and accurate, but the entire measurement process strictly adheres to the measurement methods provided by the National Institute of Standards and Technology (NIST). The final particle size measurement results can be traced to the NIST standard ruler. Such products are widely used in the development of precision instruments and equipment, as reference materials for particle size measurement and production quality control.

II. Physical data
1. Material: polystyrene ball
2. Functional group: None
3. Density: 1.05g/cm3
4. Refractive index: 1.59@589nm, 25℃
5. Appearance: milky white

III. Microsphere parameters
1. Solid content: 10% (1ml solution contains 100mg microsphere particles)
2. Average particle size: 500nm
3. Uniformity: C.V< 3%
4. Dispersion medium: deionized water and trace amounts of surfactant

IV. Microsphere storage
Storage conditions: 2~8℃, keep the bottle cap tightly closed to prevent freezing.