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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
Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometer - part3: Polyethylenes and polypropylenes
Standard published on 26.9.2010
Selected format:Plastics—Determination of the viscosity of polymers in dilute solution using capillary viscometers—Part 4:Polycarbonate(PC) moulding and extrusion materials
Standard published on 14.12.2020
Selected format:Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 5 : Thermoplastic polyester(TP) homopolymers and copolymers
Standard published on 14.8.2008
Selected format:Hygienic standard for dried fruits
Standard published on 25.1.2005
Selected format:Plastics--Thermoplastic materials--Determination of Vicat softening temperature(VST)
Standard published on 31.7.2000
Selected format:
Plastics—Thermoplastic materials—Determination of Vicat softerning temperature(VST)
Execute Date: july 2026
Standard published on 2.12.2025
Selected format:Practical guide of dosimetry in a gamma irradiation facility for food processing
Standard published on 19.6.1996
Selected format:Plastics—Determination of temperature of deflection under loadPart 1 : General test method
Standard published on 24.1.2025
Selected format:Plastics—Determination of temperature of deflection under load—Part 2:Plastics and ebonite
Standard published on 10.5.2019
Selected format:Plastics--Determination of temperature of deflection under load--Part 3:High-strength thermosetting laminates
Standard published on 15.3.2004
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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