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Non-Destructive Gold Assay Karat ID

gold assay XRF product

Get fast, accurate, analysis results with Handheld XRF. Within seconds, DELTA handheld XRF provides alloy chemistry and karat classification with one non-destructive and non-intrusive test.

With the current high value of gold, quantifying its fineness and purity is more critical than ever. Whether importing precious metals, selling or producing jewelry, fabricating metal, or recycling scrap metal, you need a fast, highly accurate way to determine karatage (gold content) for quality control, pricing, and usage purposes.

The DELTA Classic handheld XRF analyzer not only provides these qualities, but is a non-destructive, cost-effective method to check for gold content and verify alloy chemistry.

XRF is a widely-used, proven and accepted method to generate a complete analysis of gold samples, including purity and fineness. On-the-spot analysis of your gold products and materials is an easy way to boost customer confidence and ensure dealer reliability.

Critical Applications

The DELTA Classic is ideal for the jewelry industry, museums, archaeological sites,
pawn shops, coin collectors, cash-for-gold operations, scrap recycling.

  • Certify Kt content on the spot, 0 - 24 K
  • Platinum vs. white gold
  • Silver and other metal content in gold
  • Verify gold content in scrap gold
  • Determine gold content in coinage

Handsfree testing chamberr Delta Gold XRF
Optional hands-free WorkStation - provides optimal testing conditions for jewelry analysis.
Includes PC software for benchtop-syle analyzer controls.


  • Powerful 4W X-ray tube provides reliable and accurate performance for gold analysis
  • Speed - results within seconds
  • High level of precision and accuracy - reliable results
  • Completely non-destructive testing method
  • Easily measures on uneven surfaces
  • Automatic Karat determination
  • Large data storage capacity for future reference
  • Easy data export and reporting - generate immediate certification
  • Optional integrated camera and small spot collimation for focused analysis and sample image archiving

Performance You Can Count On

In an economic environment where fast AND accurate results are more important than ever, the DELTA Classic handheld XRF provides superior precision and accuracy.

While you benefit from the convenience of easy, on-the-spot analysis with Handheld XRF, you can feel confident in results that will help assure maximum profit for your gold assets.

Gold Data Chart

Repeat Analyses of Gold Alloys

DELTA Classic, 30 sec analysis time

Repeat Analyses of Gold Alloys

Testing screen for Delta

In Focus and On Target for Every Shot

The DELTA Classic is available with optional integrated camera and smalll spot collimation. A CMOS camera records sample images to memory with analysis results for report generation. X-ray beam collimation is utilized for measurement of small components and samples. A simple press of a button activates 3mm diameter collimation; an on-screen indicator shows the operator exactly where the analysis spot is focused. Collimation can be easily reverted to 10mm spot diameter for standard, bulk analyses.

Gold…and More

In addition to gold, the DELTA Classic alloy analyzer provides a high level of performance for other precious metals of interest. The analyzer comes standard with a precious metals suite that includes Ag, Au, Pt, Pd, Ir, Rh, Ni, Pb, Cu, Zn, Fe, Co, and other elements.

gold assay soft shot karat
gold assay soft shot karat element
Olympus IMS
Products used for this application

DELTA Handheld XRF PMI analyzers provide non-destructive alloy analysis to rapidly and accurately identify alloy grades and measure metal composition. Perform PMI inspections and QA / QC testing in seconds, from simple grade ID to specification quality control, from incoming material inspection to end-product verification.
DELTA Scrap Handheld XRF Analyzers provide reliable ID in 1-2 seconds for most alloy grades and pure metals. They are designed for durability - to withstand the toughest processing environments. Get fast, reliable alloy sorting and analysis for a wide variety of ferrous and non-ferrous materials in seconds.
The DELTA Element is a cost-effective handheld X-ray fluorescence (XRF) analyzer optimized for scrap metal sorting, positive material identification (PMI), alloy QA/QC, and precious metals analysis.
Combining a Silicon Drift Detector (SDD) and a 4W optimized X-ray tube, the DELTA Professional provides superior performance in speed, LODs, and elemental range. It analyzes Mg and higher for Alloys and Mining. The DELTA Professional is the best value solution from Olympus for handheld XRF.
The GoldXpert is a stylish countertop analyzer fit for the consumer showroom environment. Designed to be compact and lightweight, weighing only 22 lbs (10kg), the GoldXpert can be transported easily to wherever testing is needed. The GoldXpert gives accurate chemistry and karat results within seconds.
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