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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
General rules for measurement of length in micron scale by SEM
Standard published on 18.9.2008
Selected format:Specification for a universal wafer grid
Standard published on 25.3.2019
Selected format:Specification for establishing a wafer coordinate system
Standard published on 25.3.2019
Selected format:Analytical methods of metallurgical products—General rule for X-ray fluorescence spectrometric methods
Standard published on 4.6.2019
Selected format:Titanium and titanium alloy dics and ring
Standard published on 6.9.2013
Selected format:Paper and board—Measurement of water contact angle by optical methods
Standard published on 27.2.2026
Selected format:Determinating the kincmatic viscosity of plasticizers
Standard published on 18.6.2008
Selected format:Lasers and laser-related equipment—Test methods for laser-induced damage threshold—Part 1:Definitions and general principles
Standard published on 29.12.2017
Selected format:Lasers and laser-related equipment—Test methods for laser-induced damage threshold—Part 2: Threshold determination
Standard published on 29.12.2017
Selected format:Lasers and laser-related equipment—Test methods for laser-induced damage threshold—Part 3:Assurance of laser power(energy)handing capabilities
Standard published on 29.12.2017
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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