Regarding the issue of adding a T after sending letter GB

Announcement No. 7 of 2017: On the Conversion of 1,077 Mandatory Standards, Including those for Cement Packaging Bags, into Recommended Standards. In line with the outcomes of the work to consolidate and streamline mandatory standards, the General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration Committee have converted 1,077 mandatory standards, including those for Cement Packaging Bags, into recommended standards, which are now published here (see attachment). As of the date of publication, the above standards are no longer mandatory; the standard code has been changed from GB to GB/T, while the standard sequence number and year number remain unchanged. **General Administration of Quality Supervision, Inspection and Quarantine **Standardization Committee, March 23, 2017

That’s indeed the case; it’s no longer mandatory, and one has to take responsibility for whatever happens

It’s no longer mandatory; you have to take responsibility for whatever happens, that’s the idea

**Standards are divided into mandatory national standards (GB) and recommended national standards (GB/T). **The standard number consists of the **standard code**, the **sequence number of the standard’s issuance**, and the **year of issuance (the year it was published)**. Mandatory national standards are standards that ensure human health and the safety of persons and property, as well as **standards** that are required to be implemented in accordance with laws and administrative regulations ； Recommended national standards refer to **standards** that are voluntarily adopted in areas such as production, inspection, and use through economic means or market mechanisms. However, once a recommended national standard is accepted and adopted, or when all parties agree to include it in economic contracts, it becomes a technical basis that all parties must abide by, carrying legal binding force. The Standardization Law of the People’s Republic of China classifies Chinese standards into four levels: **national standards, industry standards, local standards (DB), and enterprise standards (Q/)**. According to the Standards Law of the People’s Republic of China, standards that are approved and issued by various competent ministries, commissions (bureaus) in China and used uniformly within the scope of those departments are referred to as industry standards. For example, industries such as machinery, electronics, construction, chemicals, metallurgy, light industry, textiles, transportation, energy, agriculture, forestry, water resources, and so on, all have established industry standards. Industry standards are divided into mandatory standards and recommended standards (for example, mandatory mechanical industry standards (JB) and recommended mechanical industry standards (JB/T)). The following standards are mandatory industry standards: (1) Standards for pharmaceuticals, veterinary drugs, pesticides, and food hygiene ； (II) Industry standards for safety and hygiene in industrial and agricultural products, as well as in their production, storage, transportation, and use ； (III) Industry standards for quality, safety, and hygiene in project construction ； (IV) Important industry standards for technical terms, symbols, codes (including programming codes), file formats, and drawing methods related to technical integration ； (V) Interchangeability in accordance with industry standards ； (VI) General test methods, inspection methods for products that need to be controlled within the industry, as well as industry standards for important industrial and agricultural products. Local standards, also known as regional standards, can be established for the safety and hygiene requirements of industrial products that lack national or industry standards but need to be standardized within a province, autonomous region, or municipality directly under the Central Government. Local standards are formulated by the standardization administrative departments of provinces, autonomous regions, and municipalities directly under the Central Government, and submitted to the standardization administrative department of the State Council as well as the relevant administrative departments of the State Council for the record. Such local standards shall be repealed after national standards or industry standards are promulgated. Local standards are one of the four levels of standards in China. Local standards can be established for the safety and hygiene requirements of industrial products that lack **national or industry standards but need to be unified within provinces, autonomous regions, and municipalities directly under the Central Government. Local standards are formulated by the standardization administrative departments of provinces, autonomous regions, and municipalities directly under the Central Government, and submitted to the standardization administrative department of the State Council as well as the relevant administrative departments of the State Council for the record. Such local standards become invalid once national standards or industry standards are issued. Local standards for the safety and hygiene requirements of industrial products, formulated by the standardization administrative departments of provinces, autonomous regions, and municipalities directly under the Central Government, are mandatory standards within their respective administrative regions. Enterprise standards are standards established for the technical requirements, management requirements, and operational requirements that need to be coordinated and unified within an enterprise. Enterprise standards are formulated by the enterprise, and approved and issued by the legal representative of the enterprise or a competent leader authorized by them. Enterprise standards generally start with the “Q/” prefix. The Standardization Law of the People’s Republic of China stipulates that if the products manufactured by an enterprise do not have any national standards or industry standards, the enterprise shall establish its own standards to serve as a basis for organizing production. A company’s product standards must be filed with the local **standardization administration department and relevant administrative departments for record-keeping. Where **standards or industry standards already exist**, companies are encouraged to establish corporate standards that are stricter than those **standards or industry standards** for use within the company.

Except for GB50341 from the Ministry of Housing and Urban-Rural Development, which hasn’t had its ‘T’ changed, all the others have

The addition of “T” indicates that it is a recommended standard, not a mandatory one.

When drawing, replace all commands with GB/T:lol

There are also letters like this appearing – it’s really funny. It’s truly unpleasant, but he still has to eat it.

Forwarding China’s Standard Announcement No. 7 of 2017: http://bbs.hcbbs.com/thread-1770961-1-1.html (Source: Haichuan Chemical Industry Forum Website)