Recently, TSNP Metrology Center received the Laboratory Accreditation Certificate signed and issued by China National Accreditation Service for Conformity Assessment (CNAS) and completed the laboratory certification. With the certificate, TSNP Metrology Center shall be listed in National Laboratory Accreditation Certificate List. At the same time, the certificates issued by TSNP laboratory can be mutually recognized with laboratory accreditation institutions of 54 countries and regions who signed the mutual recognition agreement with CNAS.