XRF Analysis Report

XRF Analysis Report — Atomic Signature Identification

The XRF (X-Ray Fluorescence) Analysis Report documents the definitive chemical composition of wood waste samples using non-destructive atomic spectroscopy at 905WOOD processing hubs. XRF provides elemental identification that resolves ambiguities left by visual AI classification — particularly the Visual Fallacy scenario where CCA-treated wood appears visually clean after years of weathering.

XRF works by exciting atoms in the sample with X-rays, causing them to emit characteristic fluorescence at element-specific wavelengths. This produces an atomic signature that unambiguously identifies the presence of arsenic, chromium, copper, and other treatment chemicals regardless of the wood's visual appearance. It is the gold standard for CCA detection in the waste industry.

The report includes: element-by-element concentration analysis, comparison against TCLP thresholds, wood treatment type identification (CCA, ACQ, copper azole, creosote), sample location and Chain of Custody reference, calibration status of the XRF instrument (with Hub Sensor Calibration Certificate reference), and any anomalies detected (arsenic volatilization during sample prep — a known XRF failure mode).

XRF analysis sits in the third position of 905WOOD's 4-layer CCA detection protocol: Layer 1 (visual AI), Layer 2 (dual-model consensus), Layer 3 (Hub XRF atomic signature), and Layer 4 (NIR spectral confirmation). This defense-in-depth approach ensures that no single sensor failure can allow contaminated material to pass through undetected.