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Standards GB - Chinese national standards - Page 6321

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GB/T 19223-2003 WITHDRAWN

Classification of coal mine water

WITHDRAWN published on 1.7.2003

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GB/T 19224-2003 WITHDRAWN

Determining the relative degree of oxidation in bituminous coal

WITHDRAWN published on 1.7.2003

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GB/T 19227-2003 WITHDRAWN

Determination of nitrogen in coal and coke—semi-micro gasification method

WITHDRAWN published on 1.7.2003

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GB/T 19228.1-2003 WITHDRAWN

Stainless steel press-fittings

WITHDRAWN published on 10.7.2003

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GB/T 19228.1-2011 WITHDRAWN

Stainless steel press-fitting assemblies - Part1 press-fittings

WITHDRAWN published on 16.6.2011

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GB/T 19228.2-2003 WITHDRAWN

Light gauge stainless steel pipes for stainless steel press-fittings

WITHDRAWN published on 10.7.2003

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GB/T 19228.3-2003 WITHDRAWN

O-rings for stainless steel press-fittings

WITHDRAWN published on 10.7.2003

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GB/T 19229-2003 WITHDRAWN

Desulphurization equipment of coal burning flue gas

WITHDRAWN published on 1.7.2003

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GB/T 19230.4-2003 WITHDRAWN

Test method for evaluating gasoline detergent in use—Part 4:Test method for influence of induction system deposit(ISD)tendencies of gasoline detergent

WITHDRAWN published on 1.7.2003

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