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Standards GB - Chinese national standards - Page 5139

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 7568.8-2014

TextilesTests for colour fastnessStandard adjacent fabricPart 8: Secondary acetate

Standard published on 3.9.2014

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GB/T 7569-2008

Wool - Determination of alkali content

Standard published on 29.4.2008

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GB/T 757-2010

Conical shaft extension for rotating electrical machines

Standard published on 10.11.2010

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GB/T 7570-2008

Wool - Determination of acid content

Standard published on 29.4.2008

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GB/T 7571-2008

Wool - Determination of solubility in alkali

Standard published on 29.4.2008

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GB/T 7573-2009

Textiles - Determination of pH of aqueous extract

Standard published on 11.6.2009

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GB/T 7573-2025

Textiles—Determination of pH of aqueous extract
Execute Date: march 2027

Standard published on 28.2.2025

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GB/T 7574-2008

Information processing - File structure and labeling of magnetic tapes for information interchange

Standard published on 18.6.2008

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GB/T 7576-1998

Semiconductor devices--Discrete devices--Part 7:Bipolar transistors--Section Four:Blank detail specification for case-rated bipolartransistors for high-frequency amplification

Standard published on 17.11.1998

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GB/T 7576-2026

Discrete semiconductor devices—Blank detail specification for high power bipolar transistors
Execute Date: october 2026

Standard published on 31.3.2026

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