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Standards GB - Chinese national standards - Page 119
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 11443.5-1994
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Domestic satellite communication earth stations--General technical requirements--Part 5:Intermediate data rate(IDR) digital carriers
Standard published on 28.12.1994
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GB/T 11444.4-1996
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Transmitterreceiver and ground communication equipment used in domestic satellite communication earth stations--Technical requirements--Part 4:Intermediate data rate (IDR) transmission equipment
Standard published on 18.12.1996
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GB/T 11446.1-2013
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Electronic grade water
Standard published on 31.12.2013
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GB/T 11446.10-2013
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Test method for total bacterial count in electronic grade water by membrane filters
Standard published on 31.12.2013
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GB/T 11446.3-2013
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Generic rules for test methods of electronic grade water
Standard published on 31.12.2013
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GB/T 11446.4-2013
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Test method for resistivity of electronic grade water
Standard published on 31.12.2013
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GB/T 11446.5-2013
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Test method for measuring trace metals in electronic grade water by atomic absorption spectrophotometry
Standard published on 31.12.2013
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GB/T 11446.6-2013
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Test method for SiO2 in electronic grade water by spectrophotometer
Standard published on 31.12.2013
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GB/T 11446.7-2013
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Test method for trace anion in electronic grade water by ion chromatography
Standard published on 31.12.2013
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GB/T 11446.8-2013
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Test method for total organic carbon in electronic grade water
Standard published on 31.12.2013
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