GB - Chinese national standards - Page 5739

Standards GB - Chinese national standards - Page 5739

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GB/T 22057.1-2008 WITHDRAWN

Microscopes - Imaging distances related to mechanical reference planes - Part 1: Tube length 160mm

WITHDRAWN published on 20.6.2008

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GB/T 22057.2-2008 WITHDRAWN

Microscopes - Imaging distances related to mechanical reference planes - Part 2: Infinity-corrected optical systems

WITHDRAWN published on 20.6.2008

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GB/T 22059-2008 WITHDRAWN

Microscopes - Magnifying power

WITHDRAWN published on 20.6.2008

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GB/T 22062-2008 WITHDRAWN

Microscopes - Graticules for oculars

WITHDRAWN published on 20.6.2008

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GB/T 22063-2008 WITHDRAWN

Microscopes - Interfacing connection type C

WITHDRAWN published on 20.6.2008

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GB/T 22068-2008 WITHDRAWN

Automobile air conditioning electrically driven compressor assembly

WITHDRAWN published on 1.7.2008

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GB/T 22071.1-2008 WITHDRAWN

Test guide for instrument transformers - Part 1: current transformers

WITHDRAWN published on 30.6.2008

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GB/T 22071.2-2008 WITHDRAWN

Test guide for instrument transformers - Part 2: Inductive voltage transformers

WITHDRAWN published on 30.6.2008

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GB/T 22072-2008 WITHDRAWN

Specifications and technical requirements for dry-type amorphous alloy core distribution transformers

WITHDRAWN published on 30.6.2008

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GB/Z 22074-2008 WITHDRAWN

Reliability test method for moulded case circuit-breakers

WITHDRAWN published on 30.6.2008

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