GB - Chinese national standards - Page 177

Standards GB - Chinese national standards - Page 177

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 12327-2022

Specifications for hydrographic survey

Standard published on 13.7.2022

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GB/T 12328-1990

Legend and color standard for comprehensive engineering geological map

Standard published on 19.4.1990

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1 390.80 USD


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GB/T 12329-1990

Karst geology terminology

Standard published on 19.4.1990

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922.80 USD


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GB/T 12332-2008

Metallic coatings - Electroplated coatings of nickel for engineering purposes

Standard published on 19.6.2008

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448.80 USD


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GB/T 12333-1990

Metallic coatings--Electroplated coatings of copper for engineering purposes

Standard published on 27.4.1990

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334.80 USD


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GB/T 12333-2025

Metallic coatings—Electroplated coatings of copper for engineering purposes
Execute Date: may 2026

Standard published on 31.10.2025

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454.80 USD


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GB/T 12334-2001

Metallic and other inorganic coatings--Definitions and conventions concerning the measurement of thickness

Standard published on 17.12.2001

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184.80 USD


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GB/T 12339-2008

Inner packaging materials in preservation

Standard published on 27.5.2008

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334.80 USD


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GB/T 1234-2012

High resistance alloys for electrical heating

Standard published on 5.11.2012

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670.80 USD


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