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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
Methods for measuring the colour of coatings
Execute Date: january 2026
Standard published on 30.6.2025
Selected format:Methods for measuring the colour of paint films--Part 1:Principles
Standard published on 31.3.1989
Selected format:Methods for measuring the colourof paint films--Part 2:Colour measurement
Standard published on 31.3.1989
Selected format:Methods for measuring the colourof paint films--Part 3:Calculation of colour differences
Standard published on 31.3.1989
Selected format:Flat relieved tooth slotting cutters--Part 1:The types and dimensions
Standard published on 30.5.2002
Selected format:Flat relieved tooth slotting cutters--Part 2:The technical specifications
Standard published on 30.5.2002
Selected format:Standard for marine radio communication vocabulary
Standard published on 12.3.2003
Selected format:High-purity sodium hydroxide
Standard published on 15.3.2024
Selected format:Sodium hydroxide for industrial use - Determination of sodium chlorate content - O-Tolidine spectrometric method
Standard published on 14.9.2006
Selected format:
Test methods of high-purity sodium hydroxide—Part 1Determination of sodium chlorate content
Execute Date: january 2026
Standard published on 30.6.2025
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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