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Standards GB - Chinese national standards - Page 7798
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 4698.3-1996
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Sponge titanium, titanium and titanium alloys—Determination of silicon content—Molybdenum blue spectrophotometric method
WITHDRAWN published on 4.11.1996
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GB 4698.4-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4698.4-1996
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Sponge titanium, titanium and titanium alloys—Determination of manganese content—Potassium periodate spectrophotometric method
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GB 4698.5-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4698.5-1996
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Sponge titanium, titanium and titanium alloys—Determination of molybdenum content—Thiocyanate spectrophotometric method
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GB 4698.6-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4698.6-1996
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Sponge titanium, titanium and titanium alloys—Determination of boron content—Extraction—methylene blue spectrophotometric method
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GB 4698.7-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4698.7-1996
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Sponge titanium, titanium and titanium alloys—Determination of nitrogen content—Distillation—Nessler reagent spectrophotometric method
WITHDRAWN published on 4.11.1996
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GB 4698.8-1984
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WITHDRAWN published on 1.1.1984
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