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Standards GB - Chinese national standards - Page 8567
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 7314-2005
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Metallic materials—Compression testing at ambient temperature
WITHDRAWN published on 13.5.2005
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GB/T 7315.1-1987
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Methods for chemical analysis of vanadium pentoxide—The potassium permanganate oxidation-ammonium ferrous sulfate titrimetric method for the determination of vanadium pentoxide content
WITHDRAWN published on 27.2.1987
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GB/T 7315.2-1987
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Methods for chemical analysis of vanadium pentoxide—The molybdenum blue spectrophotometric method for the determination of silicon content
WITHDRAWN published on 27.2.1987
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GB/T 7315.3-1987
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Methods for chamical analysis of vanadium pentoxide—The ortho-phenanthroline spectrophotometric method for the determination of iron content
WITHDRAWN published on 27.2.1987
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GB/T 7315.4-1987
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Methods for chemical analysis of vanadium pentoxide—The co-precipitation-extraction molybdenum blue spectrophotometric method for the determination of phosphorus content
WITHDRAWN published on 27.2.1987
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GB/T 7315.5-1987
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Methods for chemical analysis of vanadium pentoxide--The barium sulphate gravimetric method for the determination of sulphur content
WITHDRAWN published on 27.2.1987
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GB/T 7315.6-1987
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Methods for chemical analysis of vanadium pentoxide—The oscillopolarographic method for the determination of sulphur content
WITHDRAWN published on 27.2.1987
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GB/T 7315.7-1987
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Methods for chemical analysis of vanadium pentoxide—The AgDDTC spectrophotometric method for the determination of arsenic content
WITHDRAWN published on 27.2.1987
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GB/T 7315.8-1987
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Methods for chemical analysis of vanadium pentoxide—The atomic absorption spectrophotometric method for the determination of sodium oxide and potassium oxide contents
WITHDRAWN published on 27.2.1987
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GB 7316-1987
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Test method for refractoriness of refractory mortar
WITHDRAWN published on 1.1.1987
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