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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
Composites and reinforcements fibres—Carbon fibre reinforced plastics(CFRPs) and metal assemblies—Determination of the cross tension strength
Standard published on 28.3.2025
Selected format:Test method for mode interlaminar fracture toughness of carbon fiber reinforced composite materials—Three point bending method with end notched
Standard published on 28.3.2025
Selected format:Plastics—Poly(phenylene ether)PPE moulding and extrusion materials—Part 1:Designation system and basis for specifications
Standard published on 28.3.2025
Selected format:Plastics—Poly(phenylene ether) (PPE) moulding and extrusion materials—Part 2: Preparation of test specimen and determination of properties
Standard published on 28.3.2025
Selected format:Safety requirements for plastics blow moulding machines
Standard published on 28.3.2025
Selected format:Oil free centrifugal water chilling (heat pump) packages
Standard published on 28.3.2025
Selected format:General requirement for grading label of motor vehicle tyres
Standard published on 28.3.2025
Selected format:Manganese ores and concentrates—Determination of potassium oxide and sodium oxide content—Flame atomic emission spectrometric method
Standard published on 28.3.2025
Selected format:Test method and classification for hydrolytic resistance of the interior surfaces of glass containers
Standard published on 8.12.1995
Selected format:
Glassware—Hydrolytic resistance of the interior surfaces of glass containers—Determination by titration method and classification
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:Latest update: 2026-08-28 (Number of items: 2 298 625)
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