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Standards GB - Chinese national standards - Page 5599
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 12521-1990
WITHDRAWN
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Technical requirements for air diving decompression
WITHDRAWN published on 3.12.1990
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GB 12522-1990
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Stainless steel bellows expansion joints
WITHDRAWN published on 1.1.1990
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GB/T 12522-1996
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Stainless steel bellows expansion joints
WITHDRAWN published on 18.12.1996
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GB 12523-1990
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Noise limits for construction site
WITHDRAWN published on 9.11.1990
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GB/T 12524-1990
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Measurement method for noise from construction site
WITHDRAWN published on 9.11.1990
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GB 12527-1990
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Aerial insulated cables of rated voltages up to and including 1 kV
WITHDRAWN published on 7.11.1990
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GB 12528.1-1990
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Insulated cables (wires) for railway vehicles of rated voltages up to and including 3 kV—General
WITHDRAWN published on 7.11.1990
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GB 12528.11-2003
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Insulated cables(wires) for railway vehicles of rated voltages up to and including 3kV Amendment 1:Cross-linked polyolefin insulated cables(wires) for railway vehicles
WITHDRAWN published on 9.6.2003
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GB 12528.2-1990
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Insulated cables (wires) for railway vehicles of rated voltages up to and including 3 kV--Natural-styrenbutadiene rubber insulated cables (wires) for railway vehicles
WITHDRAWN published on 1.1.1990
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GB 12528.3-1990
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Insulated cables (wires) for railway vehicles of rated voltages up to and including 3kV--Chlorosulphonated polyethylene insulated cables (wires) for railway vehicles
WITHDRAWN published on 1.1.1990
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