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Standards GB - Chinese national standards - Page 7570
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 778.3-1996
WITHDRAWN
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Measurement of water flow in closed conduits—Meters for cold potable water—Part 3:Test methods and equipment
WITHDRAWN published on 13.8.1996
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GB/T 778.3-2007
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Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 3:Test methods and equipment
WITHDRAWN published on 12.9.2007
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GB/T 7780-1987
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The model designation of filters
WITHDRAWN published on 23.5.1987
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GB/T 7780-2005
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The model designation of filters
WITHDRAWN published on 11.7.2005
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GB/T 7781-1987
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The model designation of separators
WITHDRAWN published on 23.5.1987
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GB/T 7781-2005
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The model designation of separators
WITHDRAWN published on 11.7.2005
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GB/T 7782-1996
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Metering pump
WITHDRAWN published on 23.12.1996
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GB/T 7782-2008
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Metering pump
WITHDRAWN published on 1.7.2008
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GB/T 7784-1987
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Method of testing power reciprocating pump
WITHDRAWN published on 23.5.1987
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GB/T 7784-2006
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Test methods for power reciprocating pumps
WITHDRAWN published on 23.1.2006
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