The inspection of Gold jewelry

1. Identification
Jewelry imprint should contain manufacturer code, precious metal material name and content.
2. Appearance Quality
Mainly the overall shape of jewelry, processing quality and other specific quality of the test.
3. Jewelry weight
Gold jewelry is calculated by weight and processing fees to the price, the weight of jewelry is one of the important indicators, in accordance with the standard provisions of the weight of jewelry units of measurement grams, gold jewelry, the difference between a single piece of 0.01g.
4. Gold content
Jewelry gold content is an important indicator of its quality. Gold content of the test methods are many, can be divided into chemical analysis methods and instrumental analysis methods. According to the detection process of jewelry is damaged, can be divided into non-destructive testing and damage detection method, the quality of jewelry supervision departments in the daily inspection generally nondestructive testing method, density method combined with X-ray fluorescence spectrometry, And other large-scale instrument analysis. Market supervision and spot checks to the detrimental detection of the main fire assay method is the determination of gold content of jewelry in the national testing methods.