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Standards GB - Chinese national standards - Page 4576

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 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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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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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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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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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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GB/T 45766-2025

Silver and silver alloy powder for additive manufacturing

Standard published on 30.6.2025

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GB/T 45767-2025

Silicon nitride ceramic subtrates

Standard published on 30.6.2025

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GB/T 45768-2025

Surface chemical analysis—Secondary ion mass spectrometry—Linearity of intensity scale in single ion counting time-of-flight mass analysers

Standard published on 30.6.2025

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GB/T 45769-2025

Surface chemical analysis—X-ray photoelectron spectroscopy—Estimating and reporting detection limits for elements in homogeneous materials

Standard published on 30.6.2025

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GB/T 45770-2025

Surface chemical analysis—Atomic force microscopy—Procedure for in situ characterization of AFM probe shank profile used for nanostructure measurement

Standard published on 30.6.2025

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Entries shown from 45750 to 45760 out of a total of 94224 entries.