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Standards GB - Chinese national standards - Page 658

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 16780-2021

The norm of energy consumption per unit product of cement

Standard published on 11.10.2021

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GB/T 16781.1-2017

Natural gas—Determination of mercury—Part 1: Sampling of mercury by chemisorption on iodine

Standard published on 7.9.2017

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GB/T 16781.2-2010

Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy

Standard published on 9.8.2010

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GB/T 16783.1-2025

Petroleum and natural gas industries—Field testing of drilling fluids—Part 1: Water-based fluids

Standard published on 29.8.2025

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GB/T 16783.2-2012

Petroleum and natural gas industries - Field testing of drilling fluids - Part 2: Oil-based fluids

Standard published on 31.12.2012

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GB/T 16784-2025

General principles for after-sale service of industrial products

Standard published on 30.5.2025

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GB/T 16785-2012

Terminology work - Harmonization of concepts and terms

Standard published on 31.12.2012

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GB/T 16786-2007

Terminology work - Computer applications - Data categories

Standard published on 24.8.2007

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GB 16787-1997

Measurements and limits of radiation of cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz

Standard published on 28.5.1997

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GB 16788-1997

Measurements and limits of immunity of cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz

Standard published on 28.5.1997

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Entries shown from 6570 to 6580 out of a total of 91717 entries.