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Standards GB - Chinese national standards - Page 4842

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 47755-2026

Guide for the evaluating of thermal performance index and optimizing of thermal performance for gas-steam combined cycle power generation unit
Execute Date: february 2027

Standard published on 2.7.2026

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GB/T 47756-2026

Non-destructive testing—Magnetic-acoustic testing method for ferromagnetic materials
Execute Date: february 2027

Standard published on 2.7.2026

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GB/T 47757-2026

Geometrical product specifications (GPS)—Association

Standard published on 2.7.2026

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GB/T 47758-2026

Conformal cooling inserts for moulds
Execute Date: february 2027

Standard published on 2.7.2026

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GB/T 47759.1-2026

Geometrical product specifications (GPS)—Partition—Part 1: Vocabulary and basic concepts

Standard published on 2.7.2026

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GB/T 4776-2017

Electrical safety terminology

Standard published on 31.7.2017

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GB/T 47760-2026

Phased-array ultrasonic testing method for steel castings
Execute Date: february 2027

Standard published on 2.7.2026

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GB/T 47761-2026

Non-destructive testing—Acoustic emission testing—Detection of corrosion at atmospheric and low-pressure metallic storage tank floors
Execute Date: february 2027

Standard published on 2.7.2026

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GB/T 47762-2026

Sole moulds—General technical specifications
Execute Date: february 2027

Standard published on 2.7.2026

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