Calibrate size response
Use a size-standard family with lot-specific certified diameter and uncertainty.
Portfolio map
One material, multiple product architectures
| Applied Physics family | Primary job | Published family-level profile | Primary decision |
|---|---|---|---|
| 3000-series aqueous PSL | Submicron size calibration and research | 20–900 nm; commonly 15 mL, 1% solids on current AP pages | Choose available certified mean and uncertainty |
| 4000-series aqueous PSL | Micron and large-particle size calibration | Approximately 1–160 µm; 15 mL aqueous family on current AP page | Confirm method, settling and sampling for larger particles |
| SURF-CAL | Selected high-concentration SSIS/deposition applications | 50 mL; selected sizes and concentration options | Match deposition system, size nodes and concentration |
| Ezy-Cal / count precision | Routine liquid-particle count performance checks | Ready-to-use concentration at selected size nodes | Match target count, sample volume and instrument range |
| HEPA Test AP5000 family | HEPA/ULPA challenge and aerosol work | Approximately 30 nm–3.1 µm; 10% solids; several volumes described | Match the governing filter-test method |
| Finished particle wafer standards | SSIS calibration artifact | Wafer diameter, particle nodes, deposition pattern and counts | Treat the wafer—not the bottle—as the delivered reference artifact |
Family selection
Start with the primary objective
Verify count performance
Use a count-control family with the concentration and sample format required by the procedure.
Challenge a filter
Use a challenge-particle family and qualified aerosol method.
Calibrate an SSIS
Choose SURF-CAL or a finished wafer pathway depending on the deposition workflow.
Commercial controls
Current product truth overrides this summary
- Confirm live product page and quotation.
- Confirm the exact part number and size node.
- Review lot-specific certificate values.
- Verify bottle volume, concentration and medium.
- Confirm lead time, shipping conditions and expiration.
- Do not assume every historical AP page reflects current availability.
Portfolio strategy
How the domain network reinforces Applied Physics
PSLSpheres.com
Owns material, size-standard and particle-counter intent.
ParticleWaferStandards.com
Owns finished wafer standards and SSIS compatibility.
Silica-Nanoparticles.com
Will own silica-specific material science and applications.
AppliedPhysicsUSA.com
Remains the commercial manufacturer, specification and quote destination.
Applied Physics technical pathway
Match the standard to the measurement—not the other way around.
Send the instrument, medium, target size, concentration, certificate and packaging requirements to Applied Physics for a technical recommendation.