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How to test the purity of gold in the end

Recently, some gold investors have their own gold products have doubts, in the end these gold products and significant purity is the same? Is product quality reliable? To this end, our staff tell you how to detect the purity of gold?

How to detect the purity of gold: In the gold detection method, according to whether the destruction of gold products can be divided into non-destructive testing and damage detection methods. The former will not damage the appearance of gold products, will change the appearance of the product can not be restored.

One of the most common non-destructive testing methods is the use of water suspension method, that is, the application of Archimedes method to test the density of gold products, and compared with the standard value. The water suspension method has the advantage of being simple to detect and does not damage the metal product to it is also very safe.

However, the water suspension in the use of a great deal of limitations have a drawback. The method is mainly used as the basis for density detection, but if the product doped metal density close to the metal, can not be screened.

Another point is the water suspension method can not detect hollow products, especially in gold jewelry, hollow technology is widely used, hanging mode is not suitable for the detection of this product.

The most common destructive test is the fire. In high temperature technology, gold products melt into liquid, and then tested. This method is more reliable than the water suspension method, but its destructive lies in the detection of investors must be recognized. Such as in some bank repurchase centers, jewelry processing shop in the redemption business is using this method.

More reliable detection method is the use of fluorescence spectrometer for spectral analysis, due to higher equipment costs, the detection center of the equipment is not much. Such as the Industrial and Commercial Bank of China precious metal repurchase center, the introduction of fluorescence spectrometer to detect gold products which is good.

It is understood that the Industrial and Commercial Bank of China's precious metal repurchase center, the use of detection means there are two, one is the hanging method combined with X-ray fluorescence spectrometer detection, a X-ray fluorescence spectrometer after the detection of flame combinations, respectively, gold products test.

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