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GB - Chinese national standards - Page 4582

Standards GB - Chinese national standards - Page 4582

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 45756-2025 30.6.2025
GB/T 45756-2025

Technical specification of sintered rare earth permanent magnet splicing

Standard published on 30.6.2025

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electronic design (pdf) (346.80 USD)


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346.80 USD


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Preview GB/T 45757-2025 30.6.2025
GB/T 45757-2025

Polymer-bonded neodymium iron boron compounds pellets

Standard published on 30.6.2025

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electronic design (pdf) (442.80 USD)


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442.80 USD


in 4 working days
Preview GB/T 45758-2025 30.6.2025
GB/T 45758-2025

Determination of bacterial reduction rate by photocatalytic materials under indoor lighting environment—Semi-dry method for estimating antibacterial activity on the actual environmental bacteria contamination surface

Standard published on 30.6.2025

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electronic design (pdf) (436.80 USD)


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436.80 USD


in 4 working days
Preview GB/T 45759-2025 30.6.2025
GB/T 45759-2025

Fine ceramics—Determination of content of coarse particles in ceramic powders—Wet sieving method

Standard published on 30.6.2025

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electronic design (pdf) (298.80 USD)


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298.80 USD


in 3 working days
Preview GB/T 45760-2025 30.6.2025
GB/T 45760-2025

Fine ceramics—Determination of bulk density of powders—Untapped density

Standard published on 30.6.2025

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electronic design (pdf) (202.80 USD)


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202.80 USD


in 3 working days
Preview GB/T 45761-2025 30.6.2025
GB/T 45761-2025

Determination of antiviral activity of photocatalytic materials under indoor lighting environment—Test method using bacteriophage Q-beta

Standard published on 30.6.2025

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electronic design (pdf) (412.80 USD)


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412.80 USD


in 4 working days
Preview GB/T 45762-2025 30.6.2025
GB/T 45762-2025

Fine ceramics—Light source for testing semiconducting photocatalytic materials used under indoor lighting environment

Standard published on 30.6.2025

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electronic design (pdf) (274.80 USD)


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274.80 USD


in 3 working days
Preview GB/T 45763-2025 30.6.2025
GB/T 45763-2025

Fine ceramics—Test method for flexural strength of ceramic thin plates at room temperature—Three-point bending or four-point bending

Standard published on 30.6.2025

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electronic design (pdf) (538.80 USD)


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538.80 USD


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Preview GB/T 45764-2025 30.6.2025
GB/T 45764-2025

Fine ceramics—Determination of photocatalytic activity of surfaces in an aqueous medium—Degradation of methylene blue

Standard published on 30.6.2025

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electronic design (pdf) (370.80 USD)


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370.80 USD


in 3 working days
Preview GB/T 45765-2025 30.6.2025
GB/T 45765-2025

Fine ceramics—Measurement of thixotropic behaviour of ceramic slurry—Rotational viscometer method

Standard published on 30.6.2025

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electronic design (pdf) (370.80 USD)


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370.80 USD


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