Source hierarchy
Primary standards, NIST, NIOSH, original research and current Applied Physics product documentation are preferred. Competitor material is used for market-gap analysis—not as technical authority when primary sources exist.
Editorial standard
Technical usefulness outranks content volume.
Silica Particle Science publishes only when a page can clarify a decision, define evidence, expose a risk or improve a technical inquiry. Exact-match domain ownership is not treated as permission to create thin pages.
Claim hierarchy
Lot certificate and current quotation outrank product page; product page outranks general article; manufacturer evidence outranks uncited marketing language.
Disclosure
Applied Physics ownership and commercial links are visible. Product links are not presented as independent endorsements.
Corrections
Material errors, changed product pages and conflicting specifications are corrected or qualified rather than silently preserved.
Claims control
Language we require—and language we reject.
| Topic | Approved pattern | Rejected pattern |
|---|---|---|
| Traceability | “Certificate states traceability for the defined measurement result; review method and uncertainty.” | “NIST certified product” without evidence |
| Size | “Nominal 100 nm; measured value and method are lot-specific.” | “Every particle is exactly 100 nm” |
| Optical response | “Evaluate at the actual wavelength, medium, substrate and instrument.” | “Superior DUV performance” without a defined comparison |
| Stability | “Stable under the documented supplied conditions; verify after process changes.” | “Will never aggregate” |
| Functionalization | “Amine-functionalized; request surface evidence and loading.” | “Biocompatible” based only on the coating name |
| Commercial availability | “Current public family; confirm exact configuration by quote.” | “In stock” without current inventory evidence |
Review workflow
Every high-consequence statement must survive six questions.
- What exact fact is being claimed?
- Which product, lot, method and conditions does it cover?
- What source supports it?
- What qualifier prevents overextension?
- Does visible page content match the structured data and metadata?
- What event triggers re-review or retirement?
AI and GEO content
Write for extraction without writing for hallucination.
Pages use clear definitions, tables, formulas, decision rules, explicit limitations, named sources and stable entity relationships. We do not add unsupported “GEO tags” or generate repetitive pages solely to increase URL count. Content intended for search and AI systems must remain useful to a technical reader without the commercial click.
Corrections
Report a technical issue
Send the page URL, disputed statement and supporting evidence to Sales@AppliedPhysicsUSA.com. Applied Physics will review product-specific issues against current commercial and quality records.