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Standards GB - Chinese national standards - Page 919
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 18310.21-2002
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Fibre optic interconnecting devices and passive components--Basic test and measurement procedures--Part 2-21:Tests--Composite temperature-humidity cyclic test
Standard published on 4.12.2002
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GB/T 18310.22-2003
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Fibre optic interconnecting devices and passive components--Basic test andmeasurement procedures--Part 2-22:Tests--Change of temperature
Standard published on 24.11.2003
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GB/T 18310.23-2025
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Fibre optic interconnecting devices and passive components—Basic test and measurement procedures—Part 2-23Tests—Sealing for non-pressurized closures of fibre optic devices
Standard published on 31.10.2025
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GB/T 18310.26-2003
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Fibre optic interconnecting devices and passive components--Basic test and measurement procedures--Part 2-26:Tests--Salt mist
Standard published on 24.11.2003
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GB/T 18310.27-2026
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Fibre optic interconnecting devices and passive components—Basic test and measurement procedures—Part 2-27: Tests—Dustlaminar flow
Execute Date: february 2027
Standard published on 30.7.2026
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GB/T 18310.28-2026
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Fibre optic interconnecting devices and passive components—Basic test and measurement procedures—Part 2-28: Tests—Corrosive atmosphere (sulphur dioxide)
Execute Date: february 2027
Standard published on 30.7.2026
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GB/T 18310.29-2026
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Fibre optic interconnecting devices and passive components—Basic test and measurement procedures—Part 2-29: Tests—Low air pressure
Execute Date: february 2027
Standard published on 30.7.2026
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GB/T 18310.39-2001
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Fibre optic interconnecting devices and passive components--Basic test and measurement procedures--Part 2-39:Tests--Susceptibility to externalmagnetic fields
Standard published on 13.2.2001
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GB/T 18310.4-2001
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Fibre optic interconnecting devices and passive components--Basic test and measurement procedures--Part 2-4:Tests--Fibre/cable retention
Standard published on 13.2.2001
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GB/T 18310.42-2003
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Fibre optic interconnecting devices and passive components--Basic test and measurement procedures--Part 2-42:Tests--Static side load for connectors
Standard published on 24.11.2003
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