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D5839-15 – Standard Test Method Technical Guide
ASTM D5839-15 (Reapproved 2023) specifies a standard test method for the determination of trace element concentrations in typical liquid hazardous waste fuels (LHWF) by energy-dispersive X-ray fluorescence (EDXRF) spectrometry. It provides facilities with an accurate, rapid, and nondestructive analytical technique essential for process control and regulatory compliance.
📊 Scope and Target Analytics
This test method is specifically designed for LHWF used by industrial furnaces, covering complex sample matrices such as mixtures of solvents, oils, paints, and pigments. The standard validates the analysis of eleven priority elements, which are distinguished by their primary X-ray emission lines as defined in Sections 3.2 and 3.3.
| 🟦 Element | ⚡ Emission Line | 📐 Group |
|---|---|---|
| Ag, As, Ba, Cd, Cr, Ni, Sb, Se | K-Shell (Kα/Kβ) | Standard Analytes |
| Hg, Pb, Tl | L-Shell (Lα/Lβ) | Heavy Analytes |
📌 Regulatory Limitation: Per Section 1.4, this standard does not purport to address all safety concerns. The user is responsible for establishing appropriate safety, health, and environmental practices.
⚙️ Sample Preparation and Procedure
The sample preparation method is designed to remove highly volatile organic components and produce a homogenous specimen for accurate XRF analysis. The critical procedural parameters are outlined below.
| 🎯 Step | 📏 Specification |
|---|---|
| Sample Weighing | Weighed portion transferred to a porcelain evaporating dish. |
| Evaporation | <