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Standards GB - Chinese national standards - Page 392
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 14376-1993
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Water quality--Determination of asymmetrical dimethyl hydrazine--Amino ferrocyanide sodium spectrophotometric method
Standard published on 22.5.1993
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GB/T 14377-1993
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Water quality--Determination of triethylamine--Bromophenol blue spectrophotometric method
Standard published on 22.5.1993
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GB/T 14378-1993
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Water quality--Determination of diethylenetriamine--Salicyiclaldehyde spectrophotometric method
Standard published on 22.5.1993
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GB/T 14379-1993
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Generic specification for Loran-C system
Standard published on 20.4.1993
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GB/T 1438.1-2008
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Taper shank twist drills - Part 1: The types and dimensions for Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 1438.2-2008
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Taper shank twist drills - Part 2: The types and dimensions for long Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 1438.3-2008
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Taper shank twist drills - Part 3: The types and dimensions for lengthened Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 1438.4-2008
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Taper shank twist drills - Part 4: The types and dimensions extra-long for Morse taper shank twist drills
Standard published on 4.11.2008
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GB/T 14381-1993
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Generic specification for stored program control digital private automatic branch telephone exchange system
Standard published on 14.5.1993
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GB/T 14382-2008
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Tee strainers for fluids for pipes
Standard published on 25.8.2008
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