Standards GB - Chinese national standards - Page 576

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 15817-2026

Determination of mineral sulfate content in detergents—Gravimetric method
Execute Date: september 2026

Standard published on 27.2.2026

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GB/T 15818-2018

Test method for biodegradability of surfactants

Standard published on 28.12.2018

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GB/T 15819-2006

Polyethylene (PE) pipes for irrigation laterals - Susceptibility to envionmental stress cracking induced by insert-type fittings - Test method and specification

Standard published on 8.3.2006

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GB/T 15820-1995

Test of resistance to pull out ofjoints between polyethylene (PE) pressure pipes and fittings

Standard published on 8.12.1995

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