17mm Copper Rod Heavy Metal Test Report – March 17, 2026

Haosen Jewelry commissioned Guangdong Consumer Testing Technology Co., Ltd. (CTT) to test a sample identified in the report as “17MM environmentally friendly copper rod material.” Issued on March 17, 2026, report CTT2603012903EN documents the total cadmium, lead, and nickel content using CPSC-CH-E1001-08.3.

The tested material received an overall PASS conclusion against the client’s requirements listed in the report. Lead was measured at 34 mg/kg, below the specified limit of 90 mg/kg, while cadmium was not detected at a limit of quantitation of 2 mg/kg, against a specified limit of 90 mg/kg. Total nickel content was measured at 184 mg/kg; the report does not specify an acceptance limit for nickel. For more information on material options for custom jewelry, explore our jewelry manufacturing materials guide.