为中国合格评定国家认可委员会的认证英文缩写，含义：是由国家认证认可监督管理委员会批准设立并授权的国家认可机构，统一负责对认证机构、实验室和检查机构等相关机构的认可工作。
CNAS stands for China national accreditation service for conformity assessment. It is approved and authorized to be responsible for the accreditation work for the certification bodies, laboratories, inspection bodies and other relevant agencies by certification and accreditation administration of P.R.C.
它是在原中国认证机构国家认可委员会（CNAB）和中国实验室国家认可委员会(CNAL)基础上合并重组而成的。
It is from the merger and reorganization on the basis of China National Accreditation Board (CNAB) and China National Laboratory Accreditation Board (CNAL).
中国CNAS认证与国际组织互认：
Mutual recognition between international organizations and CNAS:
1.国际认可论坛（IAF）互认
Multilateral recognition with the International Accreditation Forum (IAF)
2.国际实验室认可合作组织(ILAC)实验合作组织互认
Mutual recognition with International Laboratory Accreditation Cooperation (ILAC)
中国CNAS认证与区域组织互认：
Mutual recognition with regional organizations:
1.与太平洋认可合作组织(PAC)互认
Mutual recognition with Pacific Accreditation Cooperation (PAC)
2.与亚太实验室认可合作组织（APLAC）互认
Mutual Recognition with Asia Pacific Laboratory Accreditation Cooperation (APLAC)
CNAS认证咨询服务流程：
CNAS certification process of consulting services:
1. 了解实验室目前状况，规划和要求，签订合作意向书；
Understand the current state, plan and requirements of the laboratory. Sign a letter of intent;
2. 根据实验室目前状况，提供CNAS认证咨询方案给实验室；
According to the laboratory situation, CNAS accreditation consulting program will be provided to the laboratory according to the laboratory current situation;
3. 签订合同，方案作为合同的一部分需要盖章签字；
Signing the contract and the consulting program need to be signed as part of the contract;
4. 执行方案；
Consulting program implementation;
5. 申请认可，直至获得CNAS证书。
Apply for accreditation until getting CNAS certificate.
