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GB - Chinese national standards - Page 8714

Standards GB - Chinese national standards - Page 8714

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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Preview GB/T 7731.4-1987 12.5.1987
GB/T 7731.4-1987 WITHDRAWN

Methods for chemical analysis of ferrotungsten--The molybdenum blue photometric method for the determination of phosphorus content

WITHDRAWN published on 12.5.1987

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Preview GB/T 7731.5-1987 12.5.1987
GB/T 7731.5-1987 WITHDRAWN

Methods for chemical analysis of ferrotungsten--The molybdenum blue photometric method for the determination of silicon content

WITHDRAWN published on 12.5.1987

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Preview GB/T 7731.6-1987 31.3.1987
GB/T 7731.6-1987 WITHDRAWN

Methods for chemical analysis of ferrotungsten—The molybdenum blue photometric method for the determination of arsenic content

WITHDRAWN published on 31.3.1987

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Preview GB/T 7731.7-1987 12.5.1987
GB/T 7731.7-1987 WITHDRAWN

Methods for chemical analysis of ferrotungsten--The phenylfluorone photometric method for the determinationof tin content

WITHDRAWN published on 12.5.1987

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Preview GB/T 7731.8-1987 31.3.1987
GB/T 7731.8-1987 WITHDRAWN

Methods for chemical analysis of ferrotungsten—The tetraethylrhodamine photometric method for the determination of antimony content

WITHDRAWN published on 31.3.1987

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Preview GB/T 7731.9-1987 31.3.1987
GB/T 7731.9-1987 WITHDRAWN

Methods for chemical analysis of ferrotungsten—The bismuth iodide photometric method for the determination of bismuth content

WITHDRAWN published on 31.3.1987

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Preview GB/T 7732-1987 12.5.1987
GB/T 7732-1987 WITHDRAWN

Standard test method for surface-crack fracture toughness KIC of metallic plates

WITHDRAWN published on 12.5.1987

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in 4 working days
Preview GB/T 7733-1987 31.3.1987
GB/T 7733-1987 WITHDRAWN

Metals-rotating bar bending corrosion fatigue testing

WITHDRAWN published on 31.3.1987

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Preview GB/T 7734-1987 12.5.1987
GB/T 7734-1987 WITHDRAWN

Method for ultrasonic testing of clad steel plates

WITHDRAWN published on 12.5.1987

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in 3 working days
Preview GB/T 7734-2004 9.6.2004
GB/T 7734-2004 WITHDRAWN

Method for ultrasonic testing of clad steel plates

WITHDRAWN published on 9.6.2004

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