跳至主要内容

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


标签：

评论

发表评论

此博客中的热门博文

Why choose the gold test machine

The value of gold depends on its fineness or carat rating. One of the most common and most effective test methods, if a project is a gold, is it through the use of electronic gold tester. Electronic gold test is just an indicator, a project may or may not be gold, its fineness level may be what. However, when using gold medal testers, you should know how to interpret the electronic test results. The electronic gold tester is getting better, but its operation remains the same. Karat is a term used to measure gold content or purity. Calat is basically a unit of measure of gold purity. The higher the carat, the more pure gold. Look at the previous gold inspection techniques and are still used in their markets including: visual inspection, bite test, magnet test, density test, ceramic plate test, and finally nitric acid test. These have been incorporated into our newly designed gold tester system. It makes work easier and more accurate. The electronic gold test is based on its conduct...
发表评论
阅读全文

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%. ...
发表评论
阅读全文

Inspection of metallic materials

Metal materials belonging to metallurgical products, engaged in the production of metal materials, ordering, transportation, use, storage and inspection must be based on a unified technical standards - metallurgical product standards. Personnel engaged in metal materials must master the relevant content of the standard. http://www.gold-testing-machine.com/product/gold-testing-machine-gt-05/ China's metallurgical products use the standard for the national standard (code-named "GB" GB "), the Ministry of the Ministry of Metallurgical Industry Standard" YB ", a machine department standard" JB ", enterprise standard three. (A) packaging inspection according to the type of metal materials, shape, size, accuracy, corrosion may be. 1 . Bulk: no packaging, wiping, block (not afraid of corrosion, not expensive), large steel (large steel, thick steel, rail), pig iron and so on. 2 . Bundle: refers to the smaller size, corrosion has little effect on the use, ...
发表评论
阅读全文