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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Information processing system—Open systems interconnection—Specification of basic encoding rules for abstract syntax notation one (ASN.1)
WITHDRAWN published on 22.3.1996
Selected format:Information technology - ASN.1 encoding rules Part 1: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER)
WITHDRAWN published on 14.3.2006
Selected format:Information technology - ASN.1 encoding rules Part 2: Specification of Packed Encoding Rules (PER)
WITHDRAWN published on 14.3.2006
Selected format:Information technology—ASN.1 encoding rules—Part 4: XML Encoding RulesXER
WITHDRAWN published on 10.12.2015
Selected format:Information technology—ASN.1 Encoding rules—Part 5: Mapping W3C XML schema definitions into ASN.1
WITHDRAWN published on 10.12.2015
Selected format:Information technology—Open systems-interconnection—The directory Part1:Overview of concepts, models and services
WITHDRAWN published on 22.3.1996
Selected format:Information technology—Open system-interconnection—The directory—Part 2:Models
WITHDRAWN published on 22.3.1996
Selected format:Information technology—Open systems-interconnection—The directory—Part 3:Abstract service definition
WITHDRAWN published on 22.3.1996
Selected format:Information technology—Open systems interconnection—The directory— Part 4:Procedures for distributed operation
WITHDRAWN published on 22.3.1996
Selected format:Information technology—Open systems interconnection—The directory— Part 5:Protocol specifications
WITHDRAWN published on 22.3.1996
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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