CHB in April 2008 received the Chinese National Accreditation Board for Laboratories (CNAL) presented the certificate of accreditation. In addition to the original certificate "CNAS" logo, but also those with "ILAC-MRA" mutual recognition of identity (as shown).

In recognition of certificates have been printed with the logo

"ILAC" is the use of the International Laboratory Accreditation Organization (International Laboratory Accreditation Cooperation) the short title. The use of the International Laboratory Accreditation Organization (ILAC), founded in 1996, its purpose is to raise the issue of an accredited laboratory testing and calibration of the acceptance of the results, in order to promote international trade in the establishment of international cooperation. Its statute in the election to the purpose of the inter-agency approved the establishment of a mutual recognition agreements. China National Accreditation Board for Laboratories (CNAL) in the January 31, 2001 and the International Laboratory Accreditation Cooperation (ILAC) signed a multilateral mutual recognition agreement "ILAC-MRA" (ILAC Mutual Recognition Arrangement), and in January 2005 ILAC was approved for use ILAC-MRA international mutual recognition of the signs license, which showed that after CNAL recognized testing laboratory test report issued by the use of CNAL signs can also use the ILAC-MRA signs.
  ILAC established a mutual recognition agreement between the laboratory accreditation bodies and their mutual trust in the ability of the Laboratory Accreditation trust. This trust between countries to accept a certificate from a recognized laboratory testing and calibration results. This eventually help reduce the number of areas of trade technology fortress. ILAC mutual recognition agreement for the realization of products, "Detection of a global recognition of the" laid the foundation for the goal.
The use of the International Laboratory Accreditation Organization (International Laboratory Accreditation Cooperation) the purpose of:
1, to provide laboratory accreditation and accreditation system of information exchange in international forums, promote the dissemination of information;
2, through laboratory accreditation bodies signed bilateral agreements or measures to encourage that have been accredited laboratory test report issued by the common accepted;
3, to encourage regional cooperation organizations Laboratory Accreditation agencies to cooperate and avoid unnecessary duplication of assessment.