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Standards GB - Chinese national standards - Page 4584

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 45775-2025

Refrigerating systems and heat pumps—Valves—Requirements, testing and marking

Standard published on 30.6.2025

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GB/T 45776-2025

Safety and control devices for gas burners and gas appliances—Particular requirements—Multifunctional controls

Standard published on 30.6.2025

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GB/T 45777-2025

Evaluation method for admixture amount of gypsum in cement

Standard published on 30.6.2025

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GB/T 45778-2025

Test method for determining chemical shrinkage of cement paste

Standard published on 30.6.2025

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GB/T 45779-2025

Welded shaped steel tubes for structure

Standard published on 30.6.2025

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GB/T 45780-2025

Green product assessment—Refrigeration and air conditioning equipment for commercial and industrial use

Standard published on 30.6.2025

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1 138.80 USD

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GB/T 45781-2025

Seamless steel tubes for mechanical structures

Standard published on 30.6.2025

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466.80 USD

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GB/T 45782-2025

Biotechnology—Requirements for data formatting and description in the life sciences

Standard published on 30.5.2025

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GB/T 45783-2025

Safety of machinery—Safeguarding authorization system—Basic requirements

Standard published on 30.5.2025

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GB/T 45784.1-2025

Agricultural vehicles—Standardized access to repair and maintenance information (RMI)—Part 1: User interface requirements for web-based information systems

Standard published on 30.5.2025

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Entries shown from 45830 to 45840 out of a total of 95082 entries.