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GB - Chinese national standards - Page 160

Standards GB - Chinese national standards - Page 160

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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Preview GB/T 12079-2012 5.11.2012
GB/T 12079-2012

Measurements of the photoelectric properties for X-ray tubes

Standard published on 5.11.2012

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in 5 working days
Preview GB/T 12082-1989 29.12.1989
GB/T 12082-1989

Letter symbols for gas lasers

Standard published on 29.12.1989

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in 4 working days
Preview GB/T 12083-2012 5.11.2012
GB/T 12083-2012

Power supply series for gas laser

Standard published on 5.11.2012

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in 2 working days
Preview GB/T 12085.1-2022 12.10.2022
GB/T 12085.1-2022

Optics and photonics—Environmental test methods—Part1: Definitions, extent of testing

Standard published on 12.10.2022

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in 3 working days
Preview GB/T 12085.11-2022 12.10.2022
GB/T 12085.11-2022

Optics and photonics—Environmental test methods—Part 11:Mould growth

Standard published on 12.10.2022

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in 3 working days
Preview GB/T 12085.12-2022 12.10.2022
GB/T 12085.12-2022

Optics and photonics—Environmental test methods—Part 12: Contamination

Standard published on 12.10.2022

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in 3 working days
Preview GB/T 12085.14-2022 12.10.2022
GB/T 12085.14-2022

Optical and photonics—Environmental test methods—Part 14:Dewhoarfrostice

Standard published on 12.10.2022

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Preview GB/T 12085.17-2022 12.10.2022
GB/T 12085.17-2022

Optics and photonics—Environmental test methods—Part 17: Combined contamination, solar radiation

Standard published on 12.10.2022

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Preview GB/T 12085.2-2022 12.10.2022
GB/T 12085.2-2022

Optics and photonics— Environmental test methods—Part 2: Cold, heat and humidity

Standard published on 12.10.2022

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Preview GB/T 12085.20-2022 12.10.2022
GB/T 12085.20-2022

Optics and photonics—Environmental test methods—Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide

Standard published on 12.10.2022

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