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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
Microbeam analysis—Electron probe microanalysis—Methods of specimen preparation for minerals and rocks
Standard published on 29.8.2025
Selected format:Thermal insulation for building applicationsGuidelines for selecting properties
Standard published on 27.3.2014
Selected format:Determination of stead-state thermal transmissivity of a moist building material
Standard published on 11.9.2015
Selected format:Silicate compound plaster for thermal insulation
Standard published on 30.6.2008
Selected format:Sampling methods for chemical analysis of crude gold
Standard published on 16.6.1998
Selected format:Sales package of edible vegetable oil
Standard published on 29.9.2024
Selected format:The specification for marine monitoring - Part 1General rules
Standard published on 18.10.2007
Selected format:The specification for marine monitoring - Part 2Data processing and quality control of analysis
Standard published on 18.10.2007
Selected format:The specification for marine monitoring Part 3:Sample collection,storage and transportation
Standard published on 18.10.2007
Selected format:The specification for marine monitoring - Part 4Seawater analysis
Standard published on 18.10.2007
Selected format:Latest update: 2026-08-28 (Number of items: 2 298 625)
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