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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
Silver and silver alloy powder for additive manufacturing
Standard published on 30.6.2025
Selected format:Silicon nitride ceramic subtrates
Standard published on 30.6.2025
Selected format:Surface chemical analysis—Secondary ion mass spectrometry—Linearity of intensity scale in single ion counting time-of-flight mass analysers
Standard published on 30.6.2025
Selected format:Surface chemical analysis—X-ray photoelectron spectroscopy—Estimating and reporting detection limits for elements in homogeneous materials
Standard published on 30.6.2025
Selected format:Surface chemical analysis—Atomic force microscopy—Procedure for in situ characterization of AFM probe shank profile used for nanostructure measurement
Standard published on 30.6.2025
Selected format:Fine ceramics—Methods for evaluating wear and friction characteristics of ceramic thin films under dry and humid conditions
Standard published on 30.6.2025
Selected format:Surface chemical analysis—Electron spectroscopies—Procedures for identifying, estimating and correcting for unintended degradation by X-rays in a material undergoing analysis by X-ray photoelectron spectroscopy
Standard published on 30.6.2025
Selected format:Surface chemical analysis—Near real-time information from the X-ray photoelectron spectroscopy survey scan—Rules for identification of, and correction for, surface contamination by carbon-containing compounds
Standard published on 30.6.2025
Selected format:Quantitative determination of antibacterial activity of ceramic tile surfaces—Test methods—Part 1Ceramic tile surfaces with incorporated antibacterial agents
Standard published on 30.6.2025
Selected format:Quantitative determination of antibacterial activity of ceramic tile surfaces—Test methods—Part 2Ceramic tille surfaces with incorporated photocatalytic antibacterial agents
Standard published on 30.6.2025
Selected format:Latest update: 2026-11-11 (Number of items: 2 209 289)
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