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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
Hexagon bolts with flange—Small series—Product grade A with driving feature of product grade B
Standard published on 23.5.2023
Selected format:Technical drawings - Simplified representation - Part 1: Pictorial presentation
Standard published on 11.5.2012
Selected format:Technical drawings - Simplified representation - Part 2: Dimensioning
Standard published on 11.5.2012
Selected format:Specification of alarm and monitoring network system for bank security and protection
Standard published on 10.11.2010
Selected format:Information processing systems--Fibre distributed data interface (FDDI)--Part 1:Token ring physical layer protocol (PHY)
Standard published on 18.12.1996
Selected format:Information processing systems--Fibre distributed data lnterface (FDDI)--Part 2:Token ring media access control (MAC)
Standard published on 18.12.1996
Selected format:Information processing systems--Fibre distributed data interface (FDDI)--Part 3:Physical layer medium dependent(PMD)
Standard published on 18.12.1996
Selected format:Information technology--Fibre Distributed Data Interface (FDDI)--Part 5:Hybrid Ring Control(HRC)
Standard published on 3.1.2000
Selected format:Industrial systemsinstallations and equipment and industrial products—Designation of signals—Part 1:Basic rules
Standard published on 23.8.2024
Selected format:Plasticizers - Determination of acid value and acidity
Standard published on 4.6.2008
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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