There are three colors of measurement certification marks used by the Bureau of Quality and Technical Supervision. What are the different meanings of different colors?

The mark of measurement certificate has three colors: red, yellow and green.

1. The green rectangular mark indicates that the specified requirements are met and the instrument is qualified. Used for measuring equipment that has passed the verification, the contents to be filled in generally include the number, effective date, verifier, etc.

2. The yellow rectangle marks indicate that some functions or scopes meet the requirements, and some functions or scopes are allowed to be used in a limited way. For the measuring equipment that has been approved for degraded use, restricted use or temporarily not used, fill in the number, sealing date and verifier.

3. The red rectangular sign indicates that it does not meet the requirements, is unqualified and is not allowed to be used. It is used for unqualified measuring equipment after approval, and the contents to be filled in are number, disable date and verifier.