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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
Sampling to determine moisture content of cork
Standard published on 31.10.2025
Selected format:Determination of apparent density of cork floor tile
Standard published on 31.10.2025
Selected format:Granulated cork—Determination of apparent bulk density
Standard published on 31.10.2025
Selected format:Granulated cork—Determination of moisture content
Standard published on 31.10.2025
Selected format:Determination of moisture content of cork floor tile
Standard published on 31.10.2025
Selected format:Technical guidelines for packaging of fresh edible agricultural products
Standard published on 31.10.2025
Selected format:Standard-oriented knowledge graph—Part 1: Implementation guidelines
Standard published on 2.12.2025
Selected format:Expression of machine language for standard—Part 1: General requirements for basic architecture and elements expression
Standard published on 2.12.2025
Selected format:
Expression of machine language for standard—Part 2: Guidelines for standard document content labeling based on XML
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:Expression of machine language for standard—Part3: Expression method of feature elements
Standard published on 28.1.2026
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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