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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 38725.3-2026

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Spoolable reinforced plastic pipe—Part 3:Steel reinforced thermoplastic coiled pipe

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 32541-2026

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Quality control system for heat treatment

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 48026-2026

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Technical requirements for construction of meteorological observation system for well-facilitated farmland

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 2426-2026

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Livestock and poultry breed（synthetic lines）—Xinjiang finewool sheep

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 20671.11-2026

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Classification system and test methods for nonmetallic gasket materials—Part 11：Test method for determining resistance of synthetic polymeric materials to fungi

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 28292-2026

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Technical specification for recycling and utilization of Fe-bearing dusts and sludges in iron and steel industry

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 30825-2026

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Pyrometry for heat treatment

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 48037-2026

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Measurement methods of luminance distribution for planar light sources and luminaires

Issued: 2026-07-30
Effective: 2027-02-01

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GB/T 17689-2026

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Geosynthetics—Plastic geogrids

Issued: 2026-07-30
Effective: 2027-02-01

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