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Standards GB - Chinese national standards - Page 161
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 12085.22-2022
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Optics and photonics—Environmental test methods—Part 22Combined cold,dry heat or temperature change with bump or random vibration
Standard published on 12.10.2022
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GB/T 12085.23-2022
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Optics and photonics—Environmental test methods—Part 23Low pressure combined with cold,ambient temperature and dry or damp heat
Standard published on 12.10.2022
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GB/T 12085.3-2022
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Optics and photonics—Environmental test methods—Part 3:Mechanical stress
Standard published on 12.10.2022
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GB/T 12085.4-2022
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Optics and photonics—Environmental test methods—Part 4: Salt mist
Standard published on 12.10.2022
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GB/T 12085.6-2022
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Optics and photonics—Environmental test methods—Part 6:Dust
Standard published on 12.10.2022
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GB/T 12085.7-2022
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Optics and photonics—Environmental test methods—Part 7:Resistance to drip or rain
Standard published on 12.10.2022
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GB/T 12085.8-2022
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Optics and photonics—Environmental test methods—Part 8:High internal pressure, low internal pressure, immersion
Standard published on 12.10.2022
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GB/T 12085.9-2022
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Optics and photonics—Environmental test methods—Part 9:Solar radiation and weathering
Standard published on 12.10.2022
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GB/T 1209.1-2009
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Agricultural machinery - Cutter bars - Part 1: Assembly
Standard published on 30.11.2009
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GB/T 1209.2-2009
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Agricultural machinery - Cutter bars - Part 2:Guard
Standard published on 30.11.2009
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