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Standards GB - Chinese national standards - Page 4352

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 43916-2024

Vacuum technology—Vacuum gauges—Specifications, calibration and measurement uncertainties for capacitance diaphragm gauges

Standard published on 25.4.2024

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GB/T 43917.1-2024

Equipment for capture and separation of welding fume—Part 1: General requirements

Standard published on 25.4.2024

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GB/T 43917.2-2024

Equipment for capture and separation of welding fume—Part 2: Requirements for testing and marking of separation efficiency

Standard published on 25.4.2024

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GB/T 43917.3-2024

Equipment for capture and separation of welding fume—Part 3: Determination of the capture efficiency of on-torch welding fume extraction devices

Standard published on 25.4.2024

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GB/T 43917.4-2024

Equipment for capture and separation of welding fume—Part 4: Determination of the minimum air volume flow rate of capture devices

Standard published on 25.4.2024

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GB/T 43918-2024

Standard meter for AC electrical energy

Standard published on 25.4.2024

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GB/T 43919-2024

Integrating requirements of digital manufacturing workshop for civil aviation forgings

Standard published on 25.4.2024

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GB/T 43919-2024E

Integrating requirements of digital manufacturing workshop for civil aviation forgings

Standard published on 25.4.2024

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GB/T 4392-2019

Slugging open-end wrenches and slugging box-end wrenches

Standard published on 30.8.2019

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GB/T 43920-2024

General technical specification for centralized smelting and distribution of aluminum alloy melt for die casting

Standard published on 25.4.2024

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