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Standards GB - Chinese national standards - Page 5587
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 12190-1990
WITHDRAWN
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Measurement of shielding effectiveness of high-performance shielding enclosures
WITHDRAWN published on 1.2.1990
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GB/T 12190-2006
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Method for measuring the shielding effectiveness of electromagnetic shielding enclosures
WITHDRAWN published on 6.3.2006
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GB 12191-1990
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Test methods of radiation pattern of the slotted-waveguide antenna for marine radar
WITHDRAWN published on 1.1.1990
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GB/T 12192-1990
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Methods of measurement for radio transmitters employing F3E emission used in the mobile services
WITHDRAWN published on 1.2.1990
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GB/T 12193-1990
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Methods of measurement for radio receivers employing F3E emission used in the mobile services
WITHDRAWN published on 1.2.1990
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GB/T 12194-1990
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Television broadcasting transmitter terminology
WITHDRAWN published on 1.2.1990
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GB/T 12195-1990
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Methods of measurement for pushbutton telephone with pulse
WITHDRAWN published on 1.2.1990
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GB/T 12196-1990
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Methods of measurement for pushbutton dialer with pulse
WITHDRAWN published on 1.2.1990
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GB/T 12197-1990
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Methods of measurement for pushbutton telephone with DTMF
WITHDRAWN published on 1.2.1990
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GB/T 12198-1990
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Methods of measurement for pushbutton dialer with DTMF
WITHDRAWN published on 1.2.1990
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