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Standards GB - Chinese national standards - Page 5737
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 12666.3-1990
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Test method on electric wires or cables under fire conditions Part 3:Test on a single horizontal insulated wire or cable
WITHDRAWN published on 28.12.1990
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GB/T 12666.4-1990
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Test method on electric wires or cables under fire conditions Part 4:Test on a single slanting insulated wire or cable
WITHDRAWN published on 28.12.1990
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GB/T 12666.5-1990
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Test method on electric wires or cables under fire conditions--Part 5: Test on bunched wires or cables
WITHDRAWN published on 1.1.1990
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GB/T 12666.6-1990
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Test method on electric wires or cables under fire conditions--Part 6: Test on fire-resisting characteristics of wire or cable
WITHDRAWN published on 1.1.1990
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GB/T 12666.7-1990
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Test method on electric wires or cables under fire conditions--Part 7: Measurement on smoke density of wires or cables
WITHDRAWN published on 1.1.1990
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GB/T 12667-1990
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General specification for excitation assembly with semiconductor for synchronous motor
WITHDRAWN published on 29.12.1990
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GB/T 12668-1990
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General specification for speed control assembly with semiconductor adjustable frequency for A. C. motor
WITHDRAWN published on 1.1.1990
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GB 12668.3-2003
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Adjustable speed electrical power dive systems—Part 3:EMC product standard including specific test methods
WITHDRAWN published on 9.10.2003
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GB/T 12669-1990
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General specification for cascade speed control assembly with semiconductor converter
WITHDRAWN published on 29.12.1990
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GB/T 1267-1999
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Chemical reagent—Sodium dihydrogen phosphate,dihydrate
WITHDRAWN published on 16.9.1999
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