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Standards GB - Chinese national standards - Page 5013
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 5543-2006
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Resin finishing agentDetermination total formaldehyde contentfree formaldehyde content and methylol formadehyde contend
Standard published on 23.1.2006
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GB/T 5546-2007
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Resin finishing agent—Determination of the nonvolatile content
Standard published on 28.11.2007
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GB/T 5547-2007
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Resin finishing agent - Determination of the viscosity
Standard published on 28.11.2007
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GB/T 5548-2007
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Resin finishing agent—Determination of the stability of solution after adding catalyst
Standard published on 28.11.2007
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GB/T 5549-2010
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Surface active agents - Determination of surface tension by drawing up liquid films
Standard published on 14.1.2011
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GB/T 5550-2016
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Surface active agents—Determination of dispersing power
Standard published on 13.10.2016
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GB/T 5551-2010
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Surface active agents - Determination for total calcium ion and magnesium ion contents in dispersing agents
Standard published on 14.1.2011
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GB/T 5553-2007
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Surface active agents - Determination of water repellency of waterprooting agents
Standard published on 13.8.2007
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GB/T 5555-2003
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Surface active agents--Test method for acid stability
Standard published on 3.7.2003
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GB/T 5556-2003
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Surface active agents--Test method for alkaline stability
Standard published on 3.7.2003
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