cma-- is the measurement certification testing organizations qualified flag, this flag has a mechanism for legitimate inspection bodies. According to relevant provisions of the "People's Republic of China Product Quality Law," in the territory of China engaged in the community-oriented detection and test products, together with accrediting bodies must be reviewed by the state or provincial level measurement of qualified certification authorities, set up by law or authorized by law to engaged in testing, inspection activities.
The content of the measurement certification assessment is mainly the qualification (level) of the personnel, the accuracy and precision of the inspection equipment, whether there are necessary working places and conditions, whether there are sound work, management procedures, rules and regulations, and whether there is a correct working basis. And inspection methods and so on.
Cal—is a sign of the inspection and inspection agency approved by the national quality examination. The institution with this mark is qualified to make the conclusion of the arbitration test. Having cma mainly means that the inspectors, testing instruments, testing basis and method are qualified, and the premise of having the cal mark is that the measurement certification is qualified, that is, it has the qualification of "cma", and then the quality management conditions of the organization also meet the requirements. It can be considered that having cal is a step further than the mechanism with only cma, and the quality of work and reliability are further improved.
Cnal--the mark of the national laboratory. This mark indicates that the inspection agency has passed the assessment of the China National Laboratory Accreditation Committee, and the inspection capability has reached the level of the national laboratory (cma, cal only indicates that it has passed the assessment and approval of the provincial quality and technology management organization). ). According to the relevant agreements of China's accession to the WTO, the "cnal" logo can be mutually recognized internationally, for example, it can be recognized by the United States, Japan, France, Germany, the United Kingdom and other countries.
Any of the above three marks is valid, especially the first mark cma, which is the basic requirement of the national law for inspection and testing institutions. At present, due to the increasingly mature market competition and the consumer psychology of consumers, and because of the increasingly sophisticated means of counterfeiting in the jewelry industry, inspection and testing institutions must continuously improve their technical level, testing capabilities and management methods, so many inspection and inspection agencies At the same time, it has the above three signs and has the capabilities and levels required by the three signs. It can be understood that the identification certificate with the above three marks has the "three insurances".
At the same time, there are cima, cal, and cnal jewellery inspection and inspection institutions. At present, there are national jewellery and jade quality supervision and inspection centers, China's Wuhan jewellery and jade inspection center, geology and mining department Shanghai Center Laboratory, gemstone testing center, Yunnan Province. Jewelry jade jewelry quality supervision and inspection and other units.
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