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GB/T 39105-2020 PDF English

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GB/T 39105-2020: Consumer product traceability - Data element directory for traceability system
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GB/T 39105-2020: Consumer product traceability - Data element directory for traceability system

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT39105-2020
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 35.040 L 72 Consumer product traceability - Data element directory for traceability system ISSUED ON: OCTOBER 21, 2020 IMPLEMENTED ON: OCTOBER 21, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of PRC.

Table of Contents

Foreword ... 3 Introduction ... 4 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 5 4 Representation of data element ... 6 5 Data element model ... 8 6 Directory of data elements ... 8 7 Usage and extension of data element ... 9 Appendix A (Informative) Directory of data element ... 10 References ... 31 Consumer product traceability - Data element directory for traceability system

1 Scope

This standard specifies the data element representation, data element model, data element catalog, data element usage and extension of the consumer product traceability system. This standard applies to the database construction, data exchange and sharing of consumer product traceability systems. This standard does not apply to products such as food, medicine, cosmetics, tobacco, special equipment, aircraft, ships, military products.

2 Normative references

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. GB/T 18391.1-2009 Information technology - Metadata registries (MDR) - Part 1: Framework GB/T 18391.3 Information technology - Metadata registries (MDR) - Part 3: Registry metamodel and basic attributes GB/T 35248-2017 Consumer product safety - Guidelines for suppliers

3 Terms and definitions

The terms and definitions defined in GB/T 18391.1-2009 and GB/T 35248-2017 as well as the following terms and definitions apply to this document. For ease of use, some terms and definitions in GB/T 18391.1-2009 are listed repeatedly below. 3.1 Data element 4.3 Data format In the data format of data elements in this standard, the meanings of the characters used are as follows: a = alphabetic character n = numeric character an = alphanumeric characters m (m is a natural number) = m characters of fixed length ..ul = text of indeterminate length ..p,q (p,q are all natural numbers) = the longest p numeric characters, q digits after the decimal point .. = From the minimum length to the maximum length, wherein the minimum length is appended to the front and the maximum length is appended to the back YYYYMMDDhhmmss = "YYYY" means the year, "MM" means the month, "DD" means the date, "hh" means the hour, "mm" means the minute, "ss" means the second, which can be combined according to the actual situation. Example 1: an5(aannn) means 5 alphanumeric characters of fixed length, wherein the first 2 are alphabetic characters, the last three are numeric characters. Example 2: n..17,2 means up to 17 numeric characters, with two digits after the decimal point. Example 3: an3..8 represents an alphanumeric character of variable length with a maximum length of 8 and a minimum length of 3.

7 Usage and extension of data element

7.1 Usage of data element Including direct use and derived use: - Direct use: It may directly use the data element to carry out the design of the database or information exchange format; - Derived use: Enterprises and (or) related organizations of different product categories can limit data elements and generate new data elements according to the characteristics of products and technological processes. Compared with the original data element, the derived data element shall not appear contradictory in the definition, data type, data format, value range and other attributes. For example, "production date" is derived from the data element "date". 7.2 Extension of data element The data element can be extended according to different consumer product categories and technological process characteristics. The representation of extended data elements shall comply with the provisions of Chapter 4, allowing more stringent restrictions on the attributes of data elements. For example, attributes that are optional in this standard may be mandatory after extension. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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