GB - Chinese national standards - Page 309

Standards GB - Chinese national standards - Page 309

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 13609-2017

Natural gas sampling guidelines

Standard published on 29.12.2017

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958.80 USD


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GB/T 13609-2025

Natural gas—Gas sampling
Execute Date: may 2026

Standard published on 31.10.2025

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1 486.80 USD


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GB/T 1361-2024

General rules and regulations for analysis of iron ores

Standard published on 25.4.2024

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238.80 USD


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GB/T 13610-2020

Analysis of natural gas composition—Gas chromatography

Standard published on 29.9.2020

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586.80 USD


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GB/T 13611-2018

Classification and basic characteristics of city gas

Standard published on 15.3.2018

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222.00 USD


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166.80 USD


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GB 13613-2011

Electromagnetic environment requirement for sea long range radio navigation stations and monitors

Standard published on 16.6.2011

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310.80 USD


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GB 13614-2012

Electromagnetic environment requirements for-Short-wave radio receiving and direction finding stations

Standard published on 29.6.2012

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358.80 USD


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GB/T 13615-2009

Electromagnetic environment protection requirements for earth stations

Standard published on 5.5.2009

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ON REQUEST


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GB/T 13616-2009

Electromagnetic environment protection requirements for digital radio-relay stations

Standard published on 5.5.2009

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