NIST traceable standards in the United States can be used for information collection: recording seed sources, land information, etc. at the production source of products, such as agricultural product planting; For industrial products, record raw material suppliers, batches, specifications, etc. These information can be manually entered into the database system or automatically collected through sensors and intelligent devices.

Data collection in the production and processing process: Record relevant information for each step during the production and processing process. Such as recording processing equipment numbers, time, temperature, operators, etc. in food processing; Record the components and process parameters used in the assembly process in industrial production. These data are collected through automated equipment on the production line or manually operated recording terminals.

Logistics transportation data addition: When the product enters the logistics transportation stage, record the information of the transportation vehicle (license plate number, driver information, etc.), shipping time, receiving time, transportation route, temperature and humidity during transportation, and other information.

Data storage and management: Traceability systems typically use relational databases (such as MySQL, Oracle, etc.) or non relational databases to store data. Organize and correlate the data collected from different stages according to certain rules, using product identifiers as indexes to link production information, processing information, logistics information, etc. of the products, forming a complete data chain.

Data security and backup: In order to ensure the integrity and availability of data, data security measures are taken, such as setting user permissions, encrypting data storage, and regularly backing up data.

Identification and tracking: Through one item one code technology, product production and processing, packaging and warehousing, channel logistics, terminal sales, and authenticity inquiry can be achieved. By identifying products and tracking their movement and usage, traceability systems can provide accurate and detailed production information to upstream systems.

Precautions for the use of NIST traceable standards in the United States:

-Requisition record: When requisitioning standard substances, relevant information must be recorded in detail, such as the requisitioner, requisition date, identification of the standard substance, requisition amount, and specific use.

-Open bottle use: Newly opened standard samples should be labeled with the opening date on the bottle, and should be used sequentially according to the bottle number. Standard samples or working reference samples of the same batch number must be used in one bottle before opening the other. It is strictly prohibited to put the removed standard samples back into the original bottle. In addition, the opening and use of the same bottle of working standard should not exceed 20 times, and the usage time should not exceed 1 month.

-Expired destruction: Regularly check whether benchmark standards have expired, and promptly transfer expired benchmark standards to containers with expiration labels for centralized destruction.

-Re standardization inspection: Unless otherwise specified, the content of the working standard shall be re standardized every six months or a newly produced sample shall be taken for calibration. When the standard product is not in use temporarily, the retesting cycle may exceed the specified cycle. Before use, retesting must be carried out, and only after passing the test can it continue to be used.

-Avoid misuse: Pay attention to the information on the "purpose of the standard substance" in the certificate of the standard substance to avoid misuse of the standard substance. Do not use your own work standards instead of standard materials at will, in order to avoid affecting the accuracy, comparability, and traceability of measurement results.