Guobiao

GB standards are the Chinese national standards issued by the Standardization Administration of China (SAC), the Chinese National Committee of the ISO and IEC. GB stands for Guobiao (simplified Chinese: 国标; traditional Chinese: 國標; pinyin: guó biāo), Chinese for national standard.

Mandatory standards are prefixed "GB". Recommended standards are prefixed "GB/T" (T from Chinese language 推荐 tuījiàn, "recommended"). A standard number follows "GB" or "GB/T".

GB standards are the basis for the product testing which products must undergo during the China Compulsory Certificate (CCC) certification. If there is no corresponding GB Standard, CCC is not required.

A non-exhaustive list of National Standards of the People's Republic of China is listed as follows, accompanied with similar international standards of ISO, marked as identical (IDT), equivalent (EQV), or non-equivalent (NEQ).

Changes are made frequently within the regulatory system of Chinese GB Standards. New standards are released, existing standards are changed or updated. In 2014, GB Standard 15084-2013 for rear view mirrors as well as GB Standard 14166:2013 (“Safety-belts, restraint systems, child restraint systems and ISOFIX child restraint systems for occupants of power-driven vehicles”) will be revised and implemented. Above that, GB Standard 27887-2011 “Restraining devices for child occupants of power-driven vehicles” will become mandatory.

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Wikipedia