Technical Data & Source Methodology
This page explains where the technical information in this knowledge center comes from, how it is classified, and how uncertainty is handled. It exists so that engineering decisions made with this content can be traced back to a defined evidence basis.
1. Company data
Company-provided information (product specifications, application descriptions, documented field tests) is used when it is available in official company materials. Company-provided information is presented as company-provided, not as independently verified fact. Where independent verification exists, the source is recorded.
2. Laboratory data
Laboratory values (BET surface area, iodine number, catalyst activity) are meaningful only together with their test conditions and method. A laboratory result under one set of conditions does not transfer to another application without re-testing.
3. Field data
Field data comes from specific industrial applications at specific plants under specific operating conditions. The knowledge center always states the application, pollutant, inlet value, outlet value and — where available — test date, test conditions and testing organization. A field result demonstrates that a material performed in one application; it is not a universal performance guarantee.
4. Public technical sources
Where general technical knowledge (mechanisms, engineering practice) is explained, it is based on established technical literature and engineering practice. Public technical sources are referenced at evidence levels — see Sources & Evidence.
5. Standards
Standards are cited by number, title, issuing organization and jurisdiction. A standard is never presented as current without verification — see Compliance & Standards.
6. Literature
Academic and technical literature is used for mechanisms and reference values. Literature values are labeled as such and are not confused with measured company data.
7. Derived calculations
Values such as percentage reductions are calculated from documented source data (for example inlet vs outlet concentrations from a field test record). Derived values are labeled Derived Value and the source data is stated.
8. Unverified / provisional data
Information that cannot yet be verified is labeled as requiring verification, or is withheld entirely. The knowledge center does not publish:
- invented production capacities
- fabricated certifications or customers
- fabricated test results
- unverified standards claims
- invented academic references
How uncertainty is marked
- Verified — source recorded and checkable.
- Company-provided — official company information, not independently confirmed.
- Requires verification — plausibility uncertain, needs confirmation before use.
- Not published — unverifiable claims are excluded rather than hedged.
For the formal data-type classification used on technical pages, see Data Classification.