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Standards GB - Chinese national standards - Page 7297
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 2679.12-1993
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Paper and board—Qualitative analysis of mineral filler and mineral coating—Chemical method
WITHDRAWN published on 7.8.1993
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GB/T 2679.13-1996
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Paper and board—Determination of air permeance (medium range)—Bendtsen method
WITHDRAWN published on 21.5.1996
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GB/T 2679.15-1997
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Paper and board—Determination of printing surface strength—Accelerating speed method (electric model)
WITHDRAWN published on 26.6.1997
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GB/T 2679.16-1997
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Paper and board—Determination of printing surface strength—Accelerating speed method (pendulum or spring model)
WITHDRAWN published on 26.6.1997
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GB 2679.2-1981
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Paper and paper board--Determination of transwettability and fold-trace transwettability--Dish method
WITHDRAWN published on 1.1.1981
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GB/T 2679.2-1995
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Paper and board—Determination of water vapour transmission rate (Dish method)
WITHDRAWN published on 6.7.1995
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GB 2679.3-1981
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Paper board--Determination of stiffness
WITHDRAWN published on 1.1.1981
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GB/T 2679.3-1996
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Paper and board—Determination of resistance to bending
WITHDRAWN published on 21.5.1996
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GB 2679.4-1981
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Paper and paper board--Determination of roughness
WITHDRAWN published on 1.1.1981
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GB/T 2679.4-1994
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Paper and board—Determination of the roughness (Bendtsen method)
WITHDRAWN published on 24.9.1994
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