Gold authentic query techniques and methods
Gold has always been a symbol of wealth that people chase, but there are many fake and inferior gold products in the market.Therefore, how to accurately identify the authenticity of gold has become an important skill.This article will introduce some commonly used authentic query techniques and methods.
Visual inspection
Appearance inspection is one of the most basic and intuitive ways of identification.First of all, pay attention to observing whether there are obvious oxidation, discoloration or spots on the surface of the golden product. This may be caused by other materials added by counterfeit products.In addition, you can use your nails to gently scrape the surface. If you leave a trace, it may be a fake.
Magnetic Test
Because the gold with high purity (usually more than 18K) is not magnetic, magnetic testing can be used when identifying.Put a small powerful magnet at the accessories to be tested and move it.If the item is attracted, it means that it contains other materials.
Density
Density determination is determined by comparing the mass and volume of objects to determine its density value, thereby inferring its composition and purity.Because different materials have different density characteristics, it can be preliminarily determined whether it is truly pure gold in this way.
X -ray fluorescent analysis method
X -ray fluorescent analysis method uses X -rays to stimulate the sample, and analyze and identify elemental analysis and identification according to the radiation spectrum in a specific wavelength and energy range according to the sample.Whether it is mixed with other non -adhesive elements.
Chemical reagent inspection method
化学试剂检验法主要通过在待测物上滴加少许硝酸或盐酸等化学试剂后观察反应情况来区分真假. 真正纯净的黏合厚会产生明显反应, 而掺杂数额多的厚则反应微弱或No reaction.
Conclusion:
The above is some common adhesive authentic verification technology and methods. When buying, it is recommended to buy it in regular channels and comprehensively verify it in combination with a variety of verification methods to avoid being deceived. I hope the above content will help you.
