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Gold test method

Our daily life in the common inspection method is not Kaopu, then the gold test method is what?
1, the density measurement method is simple and feasible
It is understood that the density of gold at room temperature is 19.26 g / cm3 to 19.37 g / cm3, can be more accurate cups into a certain amount of water, and then into the gold bars into the water, measuring the new water, the sum of the two known gold bars The size, and then came to the density of gold bars. If the density is between the standard values, the gold bars are more likely to have a higher color, otherwise they may be doped.
Common detection can be used density measurement method, this method is relatively simple, you can exclude some of the doped gold.
This method can exclude most of the doped gold, but if the doping of gold through a strict proportion of the addition of other metals, it can not determine the iridium and tungsten, the proportion and the weight of gold and light similar to the measured density is not out
2, chemical analysis or spectral analysis
It is reported that after chemical analysis or spectral analysis, the laboratory's most scientific method of identifying gold. X-ray fluorescence spectroscopy is a more advanced scientific detection means, lossless analysis technology, in a few seconds will be able to identify and determine the existence of various elements, high-precision analysis. Its proportion and gold similar, light weight, measurement density is not. 2, chemical analysis or spectral analysis It is reported that after chemical analysis or spectral analysis, the laboratory's most scientific method of identifying gold. X-ray fluorescence spectroscopy is a more advanced scientific detection means, lossless analysis technology, in a few seconds will be able to identify and determine the existence of various elements, high-precision analysis. Its proportion and gold similar, light weight, measurement density is not. 2, chemical analysis or spectral analysis It is reported that after chemical analysis or spectral analysis, the laboratory's most scientific method of identifying gold. X-ray fluorescence spectroscopy is a more advanced scientific detection means, lossless analysis technology, in a few seconds will be able to identify and determine the existence of various elements, high-precision analysis.

prompt

Thousands of gold: gold content greater than or equal to 99.9%, high purity, almost no impurities.

Gold content: Gold content greater than or equal to 99%.

K gold: gold and other metal elements (silver, copper) in accordance with the formation of different proportions of alloy.

18K Gold: Gold content greater than or equal to 75%.

14K gold: gold content greater than or equal to 58.5%.

24K gold: the theoretical value of gold content of 100%, real life should not exist.

gold testing machine


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What are the differences between the factors and characteristics of the gold tester?

Due to the special circumstances of the gold product jewelry products , the use of this method should be aware of and familiar with the following factors (the impact of these factors in different circumstances will have a great impact on the collection characteristics of line strength, and even cause justice) : A) the measured sample and the standard material and content contained in the element content is completely different; B) the surface of the test sample is coated or chemically treated; C) measurement time; D) the shape of the sample; E) the area measured by the sample; F) how much precious metal content; Gold testers test results usually require a comprehensive understanding of the different aspects of jewelry products, using different instruments, testers at different levels of quality, and testing the range of the proposed range. As the precious metal content decreases, the acceptable range will increase. The error range of the measurement result is 0.1% -3%. ...