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  •  China "GB" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    GB/T 38478-2021 Determination of astaxanthin opticalisomers content—Liquid chromatography

    China National - GB Standards
    GB/T 38479-2021 Determination of chitosan content -- High performance liquid chromatography

    China National - GB Standards
    GB/T 38482-2021 Determination of animal type Ⅰ collagen—Polyacrylamide gel electrophoresis

    China National - GB Standards
    GB/T 38488-2021 Rapid determination of microorganisms

    China National - GB Standards
    GB/T 12692.2-2021 Petroleum products—Fuels (class F)classification—Part 2:Categories of marine fuels

    China National - GB Standards
    GB/T 7363-2021 Test method for polynuclear aromatics in petroleum wax

    China National - GB Standards
    GB/T 41126-2021 Cross-border E-commerce -- Specification for information description of export trade entity

    China National - GB Standards
    GB/T 41137-2021 Procedure facilitation and data simplification methods for international trade

    China National - GB Standards
    GB/T 17674-2021 Determination of nitrogen in crude oil -- Boat-inlet chemiluminescence

    China National - GB Standards
    GB/T 21421.1-2021 Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V—Part 1：Standard strength classes and end fittings

    China National - GB Standards
    GB/T 1001.1-2021 Insulators for overhead lines with a nominal voltage above 1 000V—Part 1:Ceramic or glass insulator units for a.c.systems—Definitions,test methods and acceptance criteria

    China National - GB Standards
    GB/T 18691.5-2021 Agricultural irrigation equipment -- Irrigation valves -- Part 5: Control valves

    China National - GB Standards
    GB/T 18691.4-2021 Agricultural irrigation equipment—Irrigation valves—Part 4: Air valves

    China National - GB Standards
    GB/T 18691.3-2021 Agricultural irrigation equipment—Irrigation valves—Part 3: Check valves

    China National - GB Standards
    GB/T 18691.2-2021 Agricultural irrigation equipment—Irrigation valves—Part 2: Isolating valves

    China National - GB Standards
    GB/T 18691.1-2021 Agricultural irrigation equipment—Irrigation valves—Part 1：General requirements

    China National - GB Standards
    GB/T 32065.11-2021 Environmental test methods for oceanographic instruments—Part 11：Shock and bump test

    China National - GB Standards
    GB/T 25717-2021 Hot chamber die casting machines for magnesium alloys

    China National - GB Standards
    GB/T 17626.31-2021 Electromagnetic compatibility—Testing and measurement techniques—Part 31：AC mains ports broadband conducted disturbance immunity test

    China National - GB Standards
    GB/T 41051-2021 Full face tunnel boring machine -- Safety requirements of hard rock tunnel boring machine

    China National - GB Standards
    GB/T 41053-2021 Full face tunnel boring machine—Dual modes (earth pressure balanced and slurry balanced) tunnel boring machine

    China National - GB Standards
    GB/T 41056-2021 Full face tunnel boring machine—Double shield hard rock tunnel boring machine

    China National - GB Standards
    GB/T 41052-2021 Full face tunnel boring machine -- Remote monitoring system

    China National - GB Standards
    GB/T 29022-2021 Particle size analysis -- Dynamic light scattering (DLS)

    China National - GB Standards
    GB/T 41057-2021 Technical requirements for distributed acoustic optical fiber monitoring system on prestressed concrete cylinder pipe

    China National - GB Standards
    GB/T 41055-2021 Technical requirements for nondestructive testing （electromagnetic method based on remote field eddy current） on prestressed concrete cylinder pipe

    China National - GB Standards
    GB/T 41228-2021 General technical requirements for humidity control in cotton processing

    China National - GB Standards
    GB/T 41229-2021 Battery condenser

    China National - GB Standards
    GB/T 41054-2021 Technical specification for high performance concrete

    China National - GB Standards
    GB/T 41231-2021 General specification for moulded pallets with bamboo and wood particles

    China National - GB Standards

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