General basic knowledge of CNAs and CMA qualification review non conformance rectification Guide Certification

Date：2022-04-27 14:09:56Views：1382

CNAs is reviewed and managed by China conformity assessment and Accreditation Commission and is internationally recognized. CMA is reviewed and managed by CNCA (China National Certification and accreditation supervision and Administration Commission) and the quality and technical supervision departments of the people's governments of all provinces, cities, autonomous regions and municipalities directly under the central government. It is effective within the territory of China and plays a fair role in issuing certificates to the society. The handling methods of nonconformities in preliminary evaluation, Supervision Review and re evaluation are different, and the handling methods of general nonconformities and serious nonconformities are also different. In order to help you have an in-depth understanding, the following contents are sorted out by Chuangxin testing network for your reference.

CMA is the abbreviation of China Metrology Accreditation. Testing institutions that have obtained the qualification certificate of laboratory qualification (measurement certification) can use CMA mark on the testing (testing, testing) certificate and report according to the items approved and listed on the certificate. CMA is the mark of qualified measurement certificate issued by the testing organization. The organization with this mark is a legal inspection organization. According to the relevant provisions of the product quality law of the people's Republic of China, institutions engaged in social testing and inspection of products in China must be reviewed and qualified by the national or provincial metrological certification management department in conjunction with the evaluation organization, and can only carry out testing and inspection activities after they are set up or authorized according to law. The important contents of the assessment of measurement and certification are the qualification (level) of personnel, the accuracy and precision of inspection equipment and instruments, whether there is a necessary working site and working conditions, whether there are sound work, management procedures, rules and regulations, whether there are correct work basis and inspection methods, etc.

CMA is a national standard, which is certified according to Rb / t214-2017 General requirements for inspection and testing institutions for qualification accreditation and capability evaluation of inspection and testing institutions, supplementary requirements for industry review, application standards, etc.

CNAs mark is the abbreviation of China National Accreditation Service for conformity assessment. CNAs - the symbol of national laboratory. This mark indicates that the inspection institution has passed the examination of China National Laboratory Certification Committee, The inspection capacity has reached the level of national laboratories (CMA and cal only mean that they have passed the assessment and recognition of provincial quality and technology management institutions. According to the relevant agreements on China's accession to the WTO, the "CNAs" logo can be recognized internationally, such as the United States, Japan, France, Germany, the United Kingdom and other countries).

CNAs is an international standard, which carries out recognition rules and application standards according to cnas-cl01:2018 (ISO / IEC 17025:2017) and relevant application instructions.

Rectification methods for non conformities

1. For the rectification of nonconformities, corrective measures should be taken, not just correction;

2. Corrective measures are to eliminate the causes of nonconformities and formulate measures according to the causes;

3. The cause analysis of nonconformity is the top priority. If the cause analysis is solved, the problem will be solved.

Common causes

Cause analysis is the most critical and difficult part of corrective measures.

The root cause is usually not obvious, so all potential causes of the problem need to be carefully analyzed.

Potential causes may include:

(a) Customer requirements;

(b) Sample specification;

(c) Methods and procedures;

(d) Skills and training of employees;

(e) Consumables;

(f) Equipment and its calibration.

Common methods of cause analysis

(1) There are no provisions in the laboratory documents:

There are no provisions in the document, which cannot be relied on. The responsibility lies with the management department or leaders. They do not have a good understanding of the standard, or do not realize the importance of not being documented.

Take corrective measures:

Formulate relevant documents, publicize and implement the implementation, track and verify the implementation.

If no similar problems occur again, close the unqualified

If similar problems still occur, it is necessary to re analyze the causes and take measures again until no similar problems occur again and close the nonconformity.

Check whether there are similar problems. If there are similar problems, take corrective measures together.

(2) There are files not implemented

Failure to implement documents is a failure to abide by the law, and the responsibility is the problem of the executors.

Relevant personnel shall be further trained and educated and assessed. After passing the assessment, track and verify whether similar problems occur again. If no similar problems occur again, close the unqualified.

If similar problems still occur, it is necessary to re analyze the causes and take measures again until no similar problems occur again and close the nonconformity.

This article can only lead you to have a preliminary understanding of CNAs and CMA qualification evaluation. I hope it will be of some help to you. At the same time, we need to constantly summarize, so as to improve professional skills. You are also welcome to discuss some knowledge points of this article.