Workflow
贵金属制品检测标准及项目:纯度、硬度检测方法解析
Sou Hu Cai Jing·2025-06-24 03:07

Group 1 - The core focus of the articles is on the standards and methods for precious metal testing, including gold, silver, and platinum group metals, which are used in jewelry, electronics, and chemical catalysis [1][2]. - The testing center collaborates with laboratories equipped with high-precision X-ray fluorescence spectrometers and density balances to ensure accurate and reliable results in precious metal quality inspection [2]. Group 2 - Testing standards include purity detection, mechanical performance testing, and density measurement, adhering to GB and ISO standards [3]. - Specific purity analysis standards are set for gold (≥990‰ for pure gold), silver (≥925‰ for sterling silver), and platinum (≥950‰ for Pt950) [3]. - Mechanical properties such as Vickers hardness, tensile strength, and ductility are also measured, with specific values outlined for different types of precious metals [3]. Group 3 - The methods of testing include X-ray fluorescence for non-destructive analysis, density measurement using Archimedes' principle, and Vickers hardness testing for thin-walled jewelry [3].