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Standards GB - Chinese national standards - Page 6191
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
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GB/T 1597-1979
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Iridium crucible
WITHDRAWN published on 23.11.1979
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GB/T 1597-2004
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Iridium crucible
WITHDRAWN published on 5.2.2004
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GB/T 1597-2005
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Iridium crucible
WITHDRAWN published on 5.2.2004
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GB/T 15970.1-1995
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Corrosion of metals and alloys—Stress corrosion testing—Part 1:General guidance on testing procedures
WITHDRAWN published on 25.12.1995
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GB/T 15970.6-1998
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Corrosion of metals and alloys—Stress corrosion testing—Part 6:Preparation and use of pre-cracked specimens
WITHDRAWN published on 7.12.1998
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GB/T 15970.7-2000
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Corrosion of metals and alloys—Stress corrosion testing—Part 7:Slow strain rate testing
WITHDRAWN published on 24.7.2000
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GB/T 15971-1995
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Quality of tour-guide service
WITHDRAWN published on 25.12.1995
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GB/T 15971-2010
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Specifications for tour-guide service
WITHDRAWN published on 14.1.2011
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GB/T 15972-1995
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Generic specification for optical fibers
WITHDRAWN published on 1.1.1995
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GB/T 15972.1-1998
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Generic specification for optical fibres—Part 1:General
WITHDRAWN published on 21.12.1998
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