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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
Measurement of liquid flow in closed conduits—Volumetric method
Standard published on 31.12.2024
Selected format:Determining of the softening point of phenolic resin for digita printing material—Microscopic meltingpoint melthod
Standard published on 24.1.2025
Selected format:Determination of carbon dioxide content of steel slag during carbonation fixation
Standard published on 24.1.2025
Selected format:Plastics—Evaluation of the action of microorganisms
Standard published on 24.1.2025
Selected format:Plastics—Determination of water content
Standard published on 24.1.2025
Selected format:Determination of strength for reinforcement yarn in cement
Standard published on 24.1.2025
Selected format:Monolithic (unshaped) refractory products—Part 1: Introduction and classification
Standard published on 10.12.2015
Selected format:Monolithic (unshaped) refractory products—Part 2Sampling for testing
Standard published on 14.10.2017
Selected format:Monolithic (unshaped) refractory products—Part 3Characterization as received
Standard published on 14.10.2017
Selected format:Monolithic (unshaped) refractory products—Part 4 Determination of consistency of castables
Standard published on 14.10.2017
Selected format:Latest update: 2026-09-02 (Number of items: 2 300 045)
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