Our polystyrene latex beads, PSL Spheres, are micro-spheres produced from 20 nanometers to 1000 microns, typically in a 15 mm bottle, 1% or less in De-Ionized water solution. Our Micro-spheres are known worldwide for size accuracy and narrow size distribution for a wide range of instrument size calibration, contamination control and aerosol particle studies.
Comprehensive Particle Size Standards for Scientific Research
Verify size diameter of spores, bacterial organisms, infectious bio agents such as viruses, mRNA ribosomal molecules such as ribosomes and cellular components with Thermo Scientific™ 3000 Series Nanosphere™ Particle Size Standards. Each particle size standard provides NIST™ traceable size standard certificate and the size peak has a very narrow standard deviation. The 20 to 900nm range of spheres is ideal for the calibration of electron and atomic force microscopes, while the larger 4000 series particle size standards are used in aerosol research and calibration of laser particle counters. Polystyrene microspheres are used in laser light scattering studies, SSIS scanning surface inspection system calibration and aerosol research.
Calibrate wafer inspection systems, SSIS tools
Technical Specifications of Nanosphere Particle Size Standards
Thermo Scientific™ 3000 Series Nanosphere Particle Size Standards are highly uniform in size diameter. The polystyrene micro-spheres are measured within billionths of a meter, nanometers, and are produced with NIST traceability for absolute size accuracy.
Measurement and Physical Properties
- We use nanometers as a measure of diameter
- One nanometer is 0.001 microns (1 micrometer, 1 μm)
- 1 nanometer is equivalent to 10 angstroms
- Microspheres have a density of 1.05 g/cm3
- Index of refraction is 1.59 at 589nm (25°C)
Key Features of Microsphere Standards
- 3000 and 4000 series microspheres are uniform polymer spheres
- Size range from 20 nm to 160 microns
- Diameters calibrated with linear dimensions transferred from NIST
- Uniform size diameter for improved analytical calibration
- Packaged as aqueous suspensions in De-ionized water
Packaging and Support
- Particle Concentrations typically 1% or less
- Provided in 15ml dropper tip bottle
- Each bottle lot-numbered for technical support
Comprehensive Certification
Includes:
- Certificate of Calibration and Traceability to NIST
- Detailed calibration method and uncertainty description
- Chemical and physical properties of particle size standards
- Material Safety Data Sheet (MSDS) with handling instructions
This structure provides a comprehensive overview of the microsphere particle size standards, with clear, descriptive headings that guide the reader through the technical details and applications.
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