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GB/T Recommended National Standards

Browse selected GB/T standards used in quality, testing, product compliance, and China market-entry workflows.

GB/T 47577-2026

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Non destructive testing—Optical gas imaging testing method for volatile organic compounds (VOCs) leakage

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 12309-2026

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Industrial corn starch

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 6150.16-2026

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Methods for chemical analysis of tungsten concentrates—Part 16: Determination of iron, manganese, silicon, calcium and tungsten contents—X-ray fluorescence spectrometry

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 19557.3-2026

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Guidelines for the conduct of tests for distinctness, uniformity and stability—Durum wheat（Triticum turgidum subsp. Durum）

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 19557.35-2026

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Guidelines for the conduct of tests for distinctness, uniformity and stability—Sunflower（Helianthus annuus L.）

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 32661-2026

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Spherical silica powder

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 26280-2026

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Integral drill steels for rock drilling

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 46594-2026

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Evaluation guide for low-carbon enterprises in building material industry

Issued: 2026-05-25
Effective: 2026-12-01

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GB/T 12772-2026

Upcoming

Cast iron pipes, fittings and accessories with flexible joint for building drainage

Issued: 2026-05-25
Effective: 2026-12-01

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