It is a national accreditation body authorized by the National Certification and Accreditation Administration, and is responsible for the accreditation of certification bodies, laboratories and inspection institutions.

2. Horse: CMA is a recognized symbol of metrology certification in China.

CMA is the abbreviation of ChinaMetrologyAccreditation. A testing institution that has obtained a laboratory qualification certificate.

3.ILAC-MRA: it is the accreditation symbol of the international laboratory accreditation organization. ?

ILAC international laboratory accreditation cooperation. The predecessor of international laboratory accreditation cooperation is the International Laboratory Accreditation Conference, which was established in 1977.

Extended data

ILAC's objectives are:

1. Procedures and specifications approved by the research laboratory;

2. Promote the development of laboratory accreditation and promote international trade;

3. Help developing countries to establish laboratory accreditation systems;

4. Promote mutual recognition among laboratories around the world and avoid unnecessary repeated evaluation.

The role of ILAC multilateral recognition agreement;

ILAC forms an international multilateral mutual recognition mechanism by establishing a peer review system, and promotes the use of recognized laboratory results through multilateral agreements, thus reducing technical barriers. It laid a foundation for gradually ending the history of repeated testing in international trade and realizing the goal of "global recognition of one-time testing" of products.

Baidu encyclopedia -CNAS authentication

Baidu encyclopedia -CMA

Baidu encyclopedia -ILAC