GB18030-2022

Information technology—Chinese coded character set

信息技术中文编码字符集

GB 18030-2022 est une norme nationale chinoise obligatoire en vigueur : Information technology—Chinese coded character set. Secteur : Électronique. Thème principal : Sécurité électrique. Entrée en vigueur : 1 août 2023.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

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Champ d’application

This standard applies to the processing, exchange, storage, and transmission of Chinese and other graphic character information. It is mandatory for technical products with Chinese information processing capabilities, including software like OCR and machine translation, as well as hardware like communication terminals and e-readers. Manufacturers of IT equipment entering the Chinese market must ensure compliance with this coding standard.

Exigences techniques

GB 18030-2022 specifies the graphic characters and their hexadecimal binary representations for information technology. The standard defines a comprehensive character repertoire organized into single-byte, double-byte, and four-byte encoding structures. The double-byte section incorporates characters from GB/T 2312-1980 and CJK Unified Ideographs, while the four-byte section significantly expands the character set. This includes additions for CJK Unified Ideographs Extensions C through F, Kangxi radicals, and various ethnic minority scripts such as New Tai Lue, Lisu, and Miao. Compared to the previous 2005 version, this update modifies specific code positions for vertical punctuation and Han character components, while removing duplicate encodings. Implementers must adhere to the newly added implementation levels chapter to verify system compliance. The standard also introduces a normative annex detailing ideographic description characters.

Méthodes d’essai

As a coding standard, GB 18030-2022 does not involve physical laboratory testing. Instead, compliance is verified through software validation and character mapping checks against the specified code tables. Engineers must ensure their systems correctly parse single-byte, double-byte, and four-byte structures as defined in the normative annexes. Verification includes checking the accurate rendering of CJK extensions and minority scripts.

Questions fréquentes

What products are regulated under GB 18030-2022?

It applies to software products like input methods and OCR, as well as hardware products including computers and communication terminals that process Chinese characters.

What are the main updates in the 2022 version compared to GB 18030-2005?

The 2022 version adds thousands of new characters, including CJK Unified Ideographs Extensions C-F and several ethnic minority scripts, and introduces a new chapter on implementation levels.

Does GB 18030-2022 align with international standards?

Yes, it references GB/T 13000 (which corresponds to the ISO/IEC 10646 Universal Coded Character Set) for the unified encoding of CJK characters and supplementary planes.

The summary above provides a high-level overview of GB 18030-2022. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 18030-2022 today to access all detailed code tables, annexes, and implementation guidelines.

Indications d’applicabilité

Type: Norme de base
CCS: L71
ICS: 35.040
Autorité compétente: Ministry of Industry and Information Technology
Comité technique: Ministry of Industry and Information Technology

Relations

Remplace:GB 18030-2005