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GB - Chinese national standards - Page 4756

Standards GB - Chinese national standards - Page 4756

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 47077-2026 28.1.2026
GB/T 47077-2026

Test method for available alkali content of mineral admixtures

Standard published on 28.1.2026

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in 3 working days
Preview GB/T 47078-2026 28.1.2026
GB/T 47078-2026

Particle—Test method for filter efficiency to bioaerosol

Standard published on 28.1.2026

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electronic design (pdf) (478.80 USD)


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478.80 USD


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Preview GB/T 47079-2026 28.1.2026
GB/T 47079-2026

Technical specification of the roll induction heating treatment

Standard published on 28.1.2026

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Preview GB/T 47080-2026 28.1.2026
GB/T 47080-2026

Test method for dislocation density of diamond single crystal polished wafer

Standard published on 28.1.2026

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electronic design (pdf) (214.80 USD)


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214.80 USD


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Preview GB/T 47081-2026 28.1.2026
GB/T 47081-2026

Determination of iron, aluminum and calcium of silicon nitride powder—Inductively coupled plasma atomic emission spectrometry

Standard published on 28.1.2026

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Preview GB/T 47082-2026 28.1.2026
GB/T 47082-2026

Test method for stacking faults of polished monocrystalline silicon carbide wafers

Standard published on 28.1.2026

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Preview GB/T 47083-2026 28.1.2026
GB/T 47083-2026

Test method for thermal expansion rate of thin-walled tube of carbon fiber reinforced composite

Standard published on 28.1.2026

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electronic design (pdf) (262.80 USD)


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Preview GB/T 47084-2026 28.1.2026
GB/T 47084-2026

Additive manufacturing—Aluminum alloy by powder bed fusion

Standard published on 28.1.2026

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Preview GB/T 47085-2026 28.1.2026
GB/T 47085-2026

Determination of phenol in dye products

Standard published on 28.1.2026

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Preview GB/T 47086-2026 28.1.2026
GB/T 47086-2026

Test method for the mean and distribution of diameter for reinforcement fibers and micro fiber cotton—Digital optical scanner

Standard published on 28.1.2026

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electronic design (pdf) (310.80 USD)


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