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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
Statistical methods for heating operation data
Standard published on 7.9.2023
Selected format:Analysis of water treatment chemicals—Part 1: Determination of phosphorus
Standard published on 7.9.2023
Selected format:Analysis of water treatment chemicals—Part 2: Determination of arsenic, mercury, cadmium, chromium, lead, nickel and copper—Inductively coupled plasma mass spectrometry(ICP-MS)
Standard published on 27.11.2023
Selected format:Metallic and other inorganic coatings—Electrodeposited coatings of tin-cobalt alloy
Standard published on 7.9.2023
Selected format:Vanadium
Standard published on 30.12.2016
Selected format:Thermal spraying—Post-treatment and finishing of thermally sprayed coatings
Standard published on 7.9.2023
Selected format:Metallic and other inorganic coatings—Definitions and conventions concerning porosity
Standard published on 7.9.2023
Selected format:Metallic coatings—Porosity tests—Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour
Standard published on 7.9.2023
Selected format:Metallic materials—Methods for creep-fatigue damage assessment and life prediction
Standard published on 7.9.2023
Selected format:Carbon based films—Classification and designations
Standard published on 7.9.2023
Selected format:Latest update: 2026-09-18 (Number of items: 2 301 509)
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