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Standards GB - Chinese national standards - Page 8720
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 8170-1987
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Rules for rounding off of numberical values
WITHDRAWN published on 19.8.1987
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GB/T 8171-1987
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Test method for mechanical shock fragility rating of products-using package cushioning materials
WITHDRAWN published on 24.8.1987
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GB 8172-1987
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Control standards for urban wastes for agricultural use
WITHDRAWN published on 5.10.1987
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GB 8173-1987
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Control standards of pollutants in fly ash for agricultural use
WITHDRAWN published on 5.10.1987
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GB/T 8174-1987
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Methods of measuring and evaluating thermal insulation effects for equipments and pipes
WITHDRAWN published on 28.8.1987
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GB/T 8175-1987
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Guide for design of thermal insulation of equipments and pipes
WITHDRAWN published on 28.8.1987
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GB 8176-1987
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General rules to safety production of pressing shop
WITHDRAWN published on 1.1.1987
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GB/T 8176-1997
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General rules to safety production of pressing shop
WITHDRAWN published on 27.6.1997
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GB/T 8177-1987
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Internal micrometers
WITHDRAWN published on 7.9.1987
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GB/T 8177-2004
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Internal micrometers with two-point contact
WITHDRAWN published on 10.2.2004
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