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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
Reinforcements - Test method for woven fabrics - Part 1Determination of thickness
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for woven fabrics - Part 2: Determination of number of yarns per unit length of warp and weft
Standard published on 18.9.2013
Selected format:Reinforcements - Test method for woven fabrics - Part 3: Determination of width and length
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for woven fabrics - Part 4: Determination of flexural stiffness
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for woven fabrics - Part 5: Determination of glass fibre tensile breaking force and elongation at break
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for yarns - Part 1: Determination of linear density
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for yarns - Part 2: Determination of twist
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for yarns - Part 3: Determination of breaking force and breaking elongation for glass fibre
Standard published on 27.11.2013
Selected format:Reinforcements - Test method for yarns - Part 4: Determination of stiffness
Standard published on 18.9.2013
Selected format:Reinforcements - Test method for yarns - Part 5Determination of fiber diameter for glass fiber
Standard published on 18.9.2013
Selected format:Latest update: 2026-05-14 (Number of items: 2 277 490)
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