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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
Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of nickel content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of gadolinium content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Silver alloys—Determination of vanadium content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Silver alloy—Determination of cerium content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Silver alloys—Determination of aluminium content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Gold, silver and palladium alloys—Determination of nickel, zinc and manganese contents
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of copper and manganese contents
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Platinum alloys—Determination of tungsten content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of iron content
WITHDRAWN published on 11.5.1994
Selected format:Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of chromium content
WITHDRAWN published on 11.5.1994
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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