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China Releases a New Standard for QR Codes on Chemical Labels

China publishes an Association Standard: T/CCSAS 047-2023 (Technical Specification for Coding and Labeling of Hazardous Chemicals).

A person scanning a QR code for payment at a vending machine

January 29, 2024

By Lily Hou, PhD, CHMM

On December 25, 2023, China released a new Association Standard: T/CCSAS 047-2023 (Technical Specification for Coding and Labeling of Hazardous Chemicals).  This standard stipulates the coding principles, data storage and application requirements for Quick Response (QR) codes used for hazardous chemicals. It is applicable to the coding and labeling of hazardous chemicals during their production, storage, transportation, operation and use.

An association standard is represented by Code T, followed by the code of the social association that formulated the standard. CCSAS represents the China Chemical Safety Association. There are five levels of standards in China in the order of: National Standard, Industrial Standard, Local Standard, Association Standard, and Enterprise Standard. While the first three levels are developed by government, Association Standards are voluntary standards developed by market.

Since China’s Ministry of Emergency Management (MEM) launched the pilot of the "one enterprise, one product, one code" application in Guangdong province in 2021, many local governments at the provincial and city level in China have mandated the QR code on labels of hazardous chemicals.  However, there is no National Standard available for providing technical specifications for the code, CCSAC developed this Association Standard in order to clarify the coding rules for the hazardous chemical information code.

According to the Standard, information accessible through the QR code should consist of two parts: the fixed information and the extended information. The fixed information includes the registration website and the hazardous chemical registration number. The extended information can be customized by enterprises, including coding prefix, packaging code, production or import date code, sequence code, etc.

A hazardous chemical information code should meet three coding rules:

  • The code should be unique. The same hazardous chemical registered by different enterprises must have different QR codes.
  • The code should have sufficient capacity to accommodate changing regulatory demands and actual needs of enterprises.
  • The code should be compatible with the enterprise’s other information codes, for example, the code for electronic waybills. The additional information can be integrated into the QR code through coding fusion technology.

T/CCSAS 047-2023 was published by CCSAC and drafted by several of its members including the National Registration Center of Chemicals. The Standard became effective on December 25, 2023.


T/CCSAS 047-2023 危险化学品编码与标识技术规范 (Technical Specification for Coding and Labeling of Hazardous Chemicals)

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