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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
Acoustics—Audiometric test methods—Part 2: Sound-field audiometry with pure-tone and narrow-band test signals
Standard published on 24.2.2016
Selected format:Acoustics—Audiometric test methods—Part 3: Speech audiometry
Standard published on 29.12.2017
Selected format:Integrated emission standard of air pollutants
Standard published on 12.4.1996
Selected format:Technical requirements and testing methods for aircraft containers
Standard published on 5.10.2025
Selected format:High-voltage direct current(HVDC)systems—Guidance to the specification and design evaluation of AC filters—Part 1:Overview
Standard published on 3.12.2025
Selected format:High-voltage direct current(HVDC) systems—Guidance to the specification and design evaluation of AC filters—Part 4:Equipment
Standard published on 3.12.2025
Selected format:Plastics - Epoxy resins - Part 1: Designation
Standard published on 4.8.2008
Selected format:Plastics—Epoxy resins—Part 2: Preparation of test specimens and determination of properties of crosslinked epoxy resins
Standard published on 7.9.2023
Selected format:Information classification and codes of civilaviation
Standard published on 25.4.1996
Selected format:Measurement and evaluation of vibration severity for marine engine-room auxiliaries
Standard published on 3.3.2008
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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