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Standards GB - Chinese national standards - Page 519
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 15322.4-2019
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Combustible gas detectors—Part 4: Line-type optical beam combustible gas detectors for industrial and commercial use
Standard published on 14.10.2019
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GB 15323-2009
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Inner tube of aircraft tyres
Standard published on 15.12.2009
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GB/T 15324-2023
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Test method of the physical properties for inner tube of aircraft tyres
Standard published on 28.12.2023
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GB/T 15325-1994
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Appearance quality for reciprocating rubberseals
Standard published on 22.12.1994
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GB/T 15326-1994
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Appearance quality for rotary shaft lip seals
Standard published on 22.12.1994
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GB/T 15327-2018
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Variable-speed wide V-belt for industry
Standard published on 14.5.2018
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GB/T 15328-2019
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Classical V-belts fatigue test—Non-loading method
Standard published on 18.10.2019
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GB/T 15329-2019
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Rubber hoses and hose assemblies—Textile-reinforced hydraulic types for oil-based or water-based fluids—Specification
Standard published on 30.8.2019
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GB/T 15330-2020
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Test method for water penetration rate of pressure-sensitive tapes
Standard published on 19.11.2020
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GB/T 15331-2020
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Test method for water vapor transmission rate of pressure-sensitive tapes
Standard published on 19.11.2020
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