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Examples, detailed four unique identification, direct use!

2021-12-01 14:52

Unique identification of 1. instrument and equipment

CNAS-CL01:2018 6.4.8 All equipment that requires calibration or has a specified expiration date shall be labeled, coded or otherwise identified so that the user of the equipment can easily identify the calibration status or expiration date.

For instruments and equipment, not only the calibration status and validity period, but also the correction factors and correction values need to be reflected.

The unique identification of instruments and equipment, in addition to the number, generally has a status identification, usually represented by green (qualified), yellow (permitted) and red (disabled). Of course, if you like to use black, blue, purple also does not matter.

 2. file uniqueness identification

CNAS-CL01:2018 8.3.2 The laboratory shall ensure that: a) the documents are reviewed for adequacy and approved by authorized personnel before they are issued; ...... e) the documents are uniquely identified.

Also for the file, there is a unique identification and status identification of the file.

In general, the unique identification of documents is managed by number, and the laboratory needs to formulate the numbering rules of documents. For example: department-document category-release date-version number, etc.

Such as: GL-QM-2019-V01

GL: indicates management department

QM: Indicates Quality Manual

2019: indicates the year of publication

V01: indicates the first version.

Of course, we can also add a distinction of distribution labels for better management.

Such:GL-QM-2019-V01 -01 The last 01 represents a certain person in this management department.

Status identification of documents: controlled, retained, voided, declared, etc.


3. sample uniqueness identification

CNAS-CL01:2018 7.4.2 The laboratory shall have a system for clearly identifying the test or calibration items. The identification shall be retained for the period for which the laboratory is responsible. The marking system should ensure that items are not confused on physical objects, records or other documents.

Samples have unique identification and status identification. In general, the same number is used for management. Laboratories need to formulate numbering rules for samples. Such as: JF0252019001.

Example: Q0302-2016010101 "Q0302" is the inspection code of engineering materials; "Q" represents engineering materials; "03" represents concrete structural materials; "02" represents cement; "2016" represents 2016; "01" represents January; "01" represents 01, and "01" serial number represents the first entrustment. (Source Network for this example)

Sample status identification is generally divided into under inspection, pending inspection and completed inspection. It can be marked with different symbols, which can be appended to the sample number or managed in a separate area.

Such:⚪On behalf of the inspection, X means to be inspected, √ means inspection completed, ※ means sample retention, etc.


Unique identification of 4. report


Ink trace believes that the unique identification of the report can be associated with the number of the accepted sample, such.JF0252019001 is the report number of this sample. Of course, it is also necessary for the laboratory to formulate the numbering rules for the report.

One additional point: the number of the revision of the report.

   such as substitution: Replace the JF0252019001 with TD-JF0252019001 and JF0252019001 withdraw it. If it cannot be recovered, it should be declared invalid in a public newspaper or magazine.


      such as supplementary: The BC-JF0252019001 is a supplement to the JF0252019001, and the two are used together.