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    GB/T 15852.3-2019 Information technology—Security techniques—Message authentication codes (MACs)—Part 3: Mechanisms using a universal hash-function

    China National - GB Standards
    GB/T 15456-2019 Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method

    China National - GB Standards
    GB/T 15329-2019 Rubber hoses and hose assemblies—Textile-reinforced hydraulic types for oil-based or water-based fluids—Specification

    China National - GB Standards
    GB/T 15120.9-2019 Identification cards—Recording technique—Part 9: Tactile identifier mark

    China National - GB Standards
    GB/T 14946.2-2019 Information for national organization, cadre and personnel management—Part 2: Information classification and code lists

    China National - GB Standards
    GB/T 14946.1-2019 Information for national organization, cadre and personnel management—Part 1: Data elements

    China National - GB Standards
    GB/T 13751-2019 Earth-moving machinery—Backhoe loaders—Methods of tests

    China National - GB Standards
    GB/T 13725-2019 General principles and methods for establishing terminology database

    China National - GB Standards
    GB/T 13558-2019 Dysprosium oxide

    China National - GB Standards
    GB/T 13511.3-2019 Assembled spectacles—Part 3:Single-vision near-vision spectacles

    China National - GB Standards
    GB/T 13477.14-2019 Test method for building sealants－Part 14：Determination of resistance to prolonged exposure to water

    China National - GB Standards
    GB/T 13344-2019 Down-the-hole hammers and bits

    China National - GB Standards
    GB/T 12442-2019 Test method for the hydroxyl groups content of silica glass

    China National - GB Standards
    GB/T 12215-2019 Bauxite sand and flour for investment casting

    China National - GB Standards
    GB/T 12214-2019 Silica sand and flour for investment casting

    China National - GB Standards
    GB/T 10129-2019 Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies

    China National - GB Standards
    GB/T 10112-2019 Terminology work—Principles and methods

    China National - GB Standards
    GB/T 10067.416-2019 Basic specifications for electroheating and electromagnetic processing installations—Part 416: Polysilicon ingot furnace

    China National - GB Standards
    GB/T 10067.1-2019 Basic specifications for electroheating and electromagnetic processing installations—Part 1: General

    China National - GB Standards
    GB/T 10066.2-2019 Test methods for electroheating and electromagnetic processing installations—Part 2: Direct arc furnaces

    China National - GB Standards
    GB/T 10066.1-2019 Test methods for electroheating and electromagnetic processing installations—Part 1: General

    China National - GB Standards
    GB/T 9576-2019 Rubber and plastics hoses and hose assemblies—Guidelines for selection, storage, use and maintenance

    China National - GB Standards
    GB/T 9444-2019 Steel and iron castings—Magnetic particle inspection

    China National - GB Standards
    GB/T 9443-2019 Steel and iron castings—Liquid penetrant inspection

    China National - GB Standards
    GB/T 8826-2019 Rubber antioxidant—Polymerized 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)

    China National - GB Standards
    GB/T 8152.14-2019 Methods for chemical analysis of lead concentrates—Part 14: Determination of silicon dioxide content—Molybdenum blue spectrophotometry

    China National - GB Standards
    GB/T 7962.23-2019 Test method of colourless optical glass—Part 23: Resistance to climatic

    China National - GB Standards
    GB/T 7962.22-2019 Test method of colourless optical glass—Part 22：Resistance to attack by aqueous alkaline phosphate-containing

    China National - GB Standards
    GB/T 7962.21-2019 Test method of colourless optical glass—Part 21：Resistance to attack by aqueous alkaline solutions

    China National - GB Standards
    GB/T 7739.14-2019 Methods for chemical analysis of gold concentrates—Part 14: Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry

    China National - GB Standards

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