First, open the QQ browser on the computer, enter the certificate query in the Baidu search box on the home page, and click the first result to enter the National Gold, Silver and Jewelry Quality Supervision and Inspection Center;
Second, click the certificate or label in the menu at the top of the home page to query and enter;
Third, enter the certificate number and query code in the query interface, and click Query.
Fourth, simple self-examination.
The first step: Logo (the certificate also depends on logo). We can confirm that the testing organization that issued the certificate has passed those special qualifications through the logo on the certificate. The logo that will appear on the universal certificate is "CMA". This symbol only indicates that the organization is a unit that has passed the measurement certification review and is a necessary qualification for any unit that issues a jewelry appraisal certificate. The inspection report marked "CMA" can be used for product quality evaluation, results and judicial appraisal, and has legal effect.
Step 2: Description of appearance. The next step is to confirm whether the purchased jewelry and jade are consistent with the samples described in the certificate, including the photos of the samples, the weight on the label and the weight on the certificate, and whether the appearance and description of the jewelry correspond. Step 3: Test the content (the most important content). This step should be the content of the exam that we are most concerned about, and we should know which content on the certificate is the most important.
Step 4: Official seal or inspection mark. In order to prevent the certificate of appraisal institution from being forged, the appraisal certificate must be stamped with the official seal of the unit, and the red official seal as the inspection mark is often not printed with the certificate, but stamped after inspection.
Step 5: Understand the standards. The general appraisal certificate will also indicate the appraisal standard of jewelry and jade.
"CMA" is the English abbreviation of China Metrology Certification. It is a comprehensive certification and evaluation of the testing ability and reliability of testing institutions by the metrological administrative department of the people's government at or above the provincial level according to the provisions of the People's Republic of China (PRC) Metrology Law and the National Metrology Law. The symbol only indicates that the organization is a unit that has passed the measurement certification audit and is a necessary qualification for any unit that issues a jewelry appraisal certificate. The inspection report marked "CMA" can be used for product quality evaluation, results and judicial appraisal, and has legal effect.
Operating environment: QQ browser (version 10.8.0)