(320) 251-7400 0 Items Home Sell E-Waste Reviews Services About Contact Fire assaying is the industry standard process for obtaining gold and platinum data for electronic waste. At IRT, we create the most homogenous sample possible, ending with a powder that is less than 100 mesh (-100 mesh, or <149 microns). At our metallurgical testing lab, IRT’s certified chemists perform a fire assay and cupellation to extract the precious metals. After a total weight has been documented, the precious metal is digested in acids to extract the gold from the other metals. IRT WILL PURCHASE AND ASSAY THESE MATERIALS: Gold and silver jewelry AG flake AG bars AU bars Silver solder Sterling silver X-ray film Litho film Other precious metal bearing materials ABOUT US Learn more about what IRT can do for you and your organization. CONTACT US TODAY VISIT US 660 Mayhew Lake Rd NE St. Cloud, MN 56304Monday – Friday 7:00AM – 3:30PM CONTACT US (320) 251-7400 info@irtmn.com Refurbished Tech About Metals Lab Careers Privacy Policy Designed by DAYTA Marketing