Record yarn, construction, mass, thickness, silver form, supplier lot, custody, and bidirectional resistance. ‘Nano-silver’ requires independent particle-scale evidence; conductivity alone is not shielding.
Materials / Independent evidence tracks
One surface.
Separate physics.
Computer vision, infrared, and RF do not bend to the same mechanism. Different physics. One standard: named evidence.
Supplier figures below preserve the 30 August 2026 discovery record. They are not verified NULLRADIAL results, current quotations, or finished-product claims.
| Signal band | Material | Evidence object | Status |
|---|---|---|---|
| VISIBLE / RGB | Registered digital artwork | R1, S2 and S4 internal digital studies | Physical qualification pending |
| VISIBLE / RGB | Printed textile + cast vinyl | Print, fold, seam, curvature, distance and camera matrix | Physical samples pending |
| NIR / SWIR | Release 00 materials | Named near- and short-wave infrared sensors | Research roadmap only |
| THERMAL IR | Separate thermal architecture | Thermal construction and named sensor study | Research roadmap only |
| RF / 2–5 GHz | Silverjersey candidate | Archived supplier report: >42 dB; public method absent | Supplier report / unverified |
| RF / 0.2–14 GHz | Bremen RS candidate | Archived supplier report: approximately 60 dB; public method absent | Supplier report / unverified |
| RF / FINISHED SYSTEM | Exact garment or liner | Production test matrix: lot, seams, openings, stretch, moisture, wash | No finished-system qualification |
RGB results do not transfer to RF, infrared, another material, another pattern revision or a finished garment.
Silverjersey supplier data ↗Bremen RS supplier data ↗Independent RF context / NULLRADIAL release ladder
A FREQUENCY CLAIM
NEEDS A FREQUENCY TEST.
Silver-conductive textiles are a credible engineering route—not a magic word. Independent research establishes the problem. Only exact-lot and finished-object testing can establish a NULLRADIAL result.
Use the active ASTM D4935-18(2026) planar-material method within its 30 MHz–1.5 GHz scope. Test multiple coupons and directions; publish the curve, minimum, conditioning, and uncertainty.
Use IEEE 2715-2023 to select and document a suitable coaxial, waveguide, free-space, or near-field method outside that scope. Never extend a supplier range or fill an unmeasured gap.
Qualify the exact SKU and size across seams, closures, openings, fit states, distances, orientations, and polarizations. Performance is never inherited from a fabric swatch.
Retest after a named laundering protocol plus abrasion, flex, stretch, wet or humid state, and closure cycling where relevant. Publish failures and condition-dependent results.
Freeze the bill of materials and release sampled lots against a lower specification limit. Link SKU, lot, method, band, condition, sample count, minimum, uncertainty, and report ID.
HF/NFC at 13.56 MHz and regional UHF RFID at 860–960 MHz need separate reader, tag, distance, orientation, opening, and condition protocols. Coupon dB does not prove a blocked transaction.
SCREENEDResearch-stage materialInternal evidence; no product-performance claim
QUALIFIEDExact SKU characterizedIndependent band, method, state, and uncertainty
BATCHEDProduction lot releasedFrozen construction with a traceable test passport
Finished clothing changes the answer
Across 1–18 GHz, distance, angle, measurement point, seams, and openings materially changed results; strong flat fabric did not translate proportionally to clothing.
Primary paperCleaning can reduce shielding
Silver-coated polyamide knit measured from 0.9–2.4 GHz lost shielding effectiveness after repeated care, especially wet cleaning.
Primary paperPores and construction matter
Tests at 6.5–11 GHz found strong results in dense metallic-coated fabrics while larger pores sharply reduced shielding.
Primary paperWash + polarization move results
Textile construction, polarization, and repeated washing changed shielding performance—another reason to qualify the exact production state.
Primary paperThese papers did not test a NULLRADIAL material or product. ISO/IEC 17025 accredits a laboratory for methods within its listed scope; it does not certify a product. Product certification requires a defined scheme and an ISO/IEC 17065 certification body. Bio-inspired geometry and quantum science remain research horizons—not proof of shielding, health benefit, anonymity, or communications security.