The 18k White Gold Certified Reference Material (CRM) ERM®-EB507 is a SI-traceable, multi-element gold alloy standard developed specifically for X-ray fluorescence (XRF) spectrometry calibration and quality control.

This CRM is optimized for handheld and benchtop XRF analyzers used in jewelry analysis, precious-metal verification, scrap sorting, and refinery QA/QC workflows. Certified under the European Reference Materials (ERM) program and produced by BAM (Germany), ERM®-EB507 represents a true nickel-based white gold matrix, ensuring realistic calibration behavior.

For field verification and PMI work, many customers pair this material with NEW or  PRE-OWNED handheld XRF analyzers for rapid, on-site analysis.

 Certified Composition (Mass Fraction %)

Values are traceable to the SI and represent the unweighted mean of accepted interlaboratory datasets

Key Applications

• Handheld XRF calibration & verification
• Jewelry & precious metals analysis
• Gold scrap sorting & authentication
• XRF QA/QC programs
• Training & method validation

What Makes This CRM Different

• True 18k White Gold Matrix – Includes Ni-based whitening system, not approximations
• Designed for Handheld XRF – Explicitly developed for portable instruments
• Multi-Lab Certified Data – Robust uncertainty modeling & statistical validation
• Long-Term Stability – Certificate valid through May 2064

This CRM is ideal for distinguishing white gold from yellow, rose, or plated alloys during XRF analysis.

Physical Description

• Form: Round metallic slice embedded in acrylic
• Metal Diameter: 15.8 mm
• Metal Thickness: 0.25 – 0.30 mm
• Acrylic Disc: 40 mm diameter × 5 mm thickness

The embedded design provides repeatable geometry, flat analysis surface, and excellent durability for routine XRF use

Intended Use

• ERM®-EB507 is intended for:
• Calibration of X-ray fluorescence spectrometers
• Quality control verification
• White gold alloy validation

It was specifically developed for handheld XRF spectrometers, making it well-suited for field and shop-floor environments

Additional Analytical Notes

• One laboratory detected Fe at 0.014% and Mn at 0.03% (informational only, not certified values)
• Primary certification performed using:
• Fire Assay (Au)
• ICP-OES after aqua regia dissolution (Ag, Cu, Ni, Zn)

Instructions for Use

• No sample preparation required
• Avoid touching the metal surface
• If needed, clean gently with pure ethanol
• Store in a clean, dry environment at ambient conditions

Certification & Traceability

• Certified By: BAM – Bundesanstalt für Materialforschung und -prüfung (Germany)
• Program: European Reference Materials (ERM®)
• Traceability: SI-traceable via pure substances of known stoichiometry
• Certificate Validity: Through 05/2064

What’s Included

• 1× ERM-EB507 18k White Gold CRM
• Original Certificate of Analysis (PDF)
• Protective packaging

Why Buy from Alloy Geek?

• CRM expertise focused on handheld and benchtop XRF users
• Fast shipping & knowledgeable support
• Trusted by scrap yards, jewelers, refiners, and labs
• Calibration materials curated specifically for real-world field use

Certified by

• BAM Department 1 (Analytical Chemistry; Reference Materials)
• BAM Division 1.6 (Inorganic Reference Materials)
• Download the Certificate of Analysis

Ensure accuracy and traceability in your gold testing workflow with the ERM®-EB508e 18K Gold CRM – trusted by laboratories and precious metal professionals worldwide.