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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 47681.2-2026

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Date and time—Code for calendar system—Part 2: Chinese historical calendar

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

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GB/T 7666-2026

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Nomenclature and code for transducers

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

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GB/T 12002-2026

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Sealing strips for plastic doors and windows

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

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GB/T 6150.11-2026

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Methods for chemical analysis of tungsten concentrates—Part 11：Determination of impurity element contents—Inductively coupled plasma atomic emission spectrometry

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

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GB/T 33514-2026

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Steel cord conveyor belts—Determination of the lateral and vertical displacement of steel cords

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

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GB/T 22105.1-2026

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Soil quality—Determination of total mercury, total arsenic and total lead—Atomic fluorescence spectrometry—Part 1: Determination of total mercury in soil

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

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GB/T 6609.5-2026

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Chemical analysis methods and determination of physical performance of alumina—Part 5：Determination of sodium oxide and potassium oxide contents

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

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GB/T 13577-2026

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Mill for rubber and plastics

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

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GB/T 34163-2026

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Shale gas—Technical specifications of development plan

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

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