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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
Terminology relating to radiation processing dosimetry
WITHDRAWN published on 5.1.1995
Selected format:Conversion method of absorbed doses in different materials irradiated by X, rays and electron beams
WITHDRAWN published on 5.1.1995
Selected format:Fixed capacitors for use in electronic equipment—Part 19:Sectional specification— Fixed metallized polyethylene-terephthalate film dielectric chip D.C.capacitors
WITHDRAWN published on 5.1.1995
Selected format:Paper, board and pulp-Determination of acidity or alkalinity
WITHDRAWN published on 22.2.1989
Selected format:Paper, board and pulp-Determination of acidity or alkalinity
WITHDRAWN published on 20.10.2003
Selected format:Paper,board and pulp—Determination of PH of aqueous extracts
WITHDRAWN published on 22.2.1989
Selected format:Paper, board and pulp-Determination of pH of aqueous extracts
WITHDRAWN published on 20.10.2003
Selected format:Blank detail specification for silicon dual-gate field-effect transistors
WITHDRAWN published on 5.1.1995
Selected format:Industrial circulating cooling water—Determination of alkalinity
WITHDRAWN published on 12.1.1995
Selected format:Industrial circulating cooling water—Determination of calcium and magnesium— EDTA titration method
WITHDRAWN published on 12.1.1995
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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