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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
Medical electrical equipment—Part 2:Particular requirements for the safety of electrocardiographs
Standard published on 12.7.2000
Selected format:Thermoplastics pipes--Universal wall thickness table
Standard published on 24.10.2001
Selected format:Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells
Standard published on 4.1.2008
Selected format:Moulded polystyrene foam for thermal insulationEPS
Standard published on 20.8.2021
Selected format:Rigid extruded polystyrene foam board for thermal insulation(XPS)
Standard published on 28.12.2018
Selected format:General flexible polyurethane cellular plastics
Standard published on 7.9.2023
Selected format:Flexible cellular polymeric materials - Determination of hardness (indentation technique)
Standard published on 31.3.2006
Selected format:Flexible cellular polymeric materials - Determination of tear strength
Standard published on 31.3.2006
Selected format:Uncut finished Spectacle lenses Part1:Single-vision and multifocal lenses
Standard published on 17.11.2005
Selected format:
Uncut finished spectacle lenses—Part 1: Single-vision and multifocal
Execute Date: march 2026
Standard published on 28.2.2025
Selected format:Latest update: 2025-08-21 (Number of items: 2 213 168)
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