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Standards GB - Chinese national standards - Page 537
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 15530.6-2008
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Loose plate flange in steel with a copper pipe or a weld-neck collar in copper alloy for welding
Standard published on 25.8.2008
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GB/T 15530.7-1995
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Copper alloy blank flanges
Standard published on 2.4.1995
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GB/T 15530.8-1995
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Specifications for copper alloy and composite flanges
Standard published on 2.4.1995
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GB/T 15531-2022
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Belt drives—Pulleys—Limiting values for adjustment of centres
Standard published on 30.12.2022
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GB/T 15532-2008
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Specification of computer software testing
Standard published on 11.4.2008
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GB/T 15533-1995
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Information processing systems--Smallcomputer system interface(SCSI)
Standard published on 6.4.1995
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GB/T 15535-1995
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Information processing--Specification of single-hit decision tables
Standard published on 6.4.1995
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GB/T 15536-1995
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Information processing--SGML support facilities--SGML document interchange format(SDIF)
Standard published on 6.4.1995
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GB/T 15537-1995
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Information processing--SGML support facilities--Registration procedures for public text owner identifiers
Standard published on 6.4.1995
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GB/T 1554-2009
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Testing method for crystallographic perfection of silicon by preferential etch techniques
Standard published on 30.10.2009
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