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Standards GB - Chinese national standards - Page 339
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 13893.2-2019
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Paints and varnishes—Determination of resistance to humidity—Part 2: Condensation(in-cabinet exposure with heated water reservoir)
Standard published on 25.3.2019
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GB/T 13894-2023
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Petroleum and liquid petroleum products—Level measurement—Manual methods
Standard published on 27.11.2023
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GB 13895-2018
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Heavy duty gear oils for automobile (GL-5)
Standard published on 13.7.2018
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GB/T 13896-1992
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Water quality--Determination of lead--Oscillopolarography
Standard published on 23.11.1992
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GB/T 13897-1992
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Water quality--Determination of thiocyanate--Isonicotinic acid pyrazolone spectrophotometry
Standard published on 23.11.1992
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GB/T 13898-1992
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Water quality--Determination of ferro and ferric cyanic complex--Atom absorption spectrophotometry
Standard published on 23.11.1992
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GB/T 13899-1992
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Water quality--Determination of ferro and ferric cyanic complex--Ferric trichloride spectrophotometry
Standard published on 23.11.1992
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GB/T 139-2008
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Standard method for using the ferrous sulfat (fricke) dosimeter to measure absorbed dose in water
Standard published on 19.9.2008
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GB/T 13900-1992
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Water quality--Determination of RDX--Spectrophotometry
Standard published on 23.11.1992
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GB/T 13901-13902-1992
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Standard published on 1.1.1992
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