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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Purchase services.
  •  China "JJ" GB Standards List:
  • Standard  Code GB Standard Title Standard Class Order
    JJG 652-1990 Verification Regulation of Rotating Pure Bending Fatigue Testing Machines

    JJ-China Metrological Standards

    JJG 653-1990 Verification Regulation of Power Measure Machine

    JJ-China Metrological Standards

    JJG 654-1990 Verification Regulation of Ultrasonic Hardness Testers

    JJ-China Metrological Standards

    JJG 655-1990 Verification regulation of noise dosimeters

    JJ-China Metrological Standards

    JJG 656-1990 Verification Regulation of Nitrate Automatic Monitor

    JJ-China Metrological Standards

    JJG 672-1990 (Isothermal oxygen bomb calorimeter test procedures)

    JJ-China Metrological Standards

    JJG 658-1990 Verification Regulation of Instruments for Measuring the Moisture Content of Grain with Baking Method

    JJ-China Metrological Standards

    JJG 671-1990 Verification Regulation of Instrument for Dynamical Measurement of Lead Screw

    JJ-China Metrological Standards

    JJG 660-1990 Verification Regulation of Patten Area Measuring Instruments

    JJ-China Metrological Standards

    JJG 661-1990 Verification Regulation of Flatness Interferometer with Isoclinic Circle fringe

    JJ-China Metrological Standards

    JJG 66-1990 Verification Regulation of RF Capacitive Loss Standard Set

    JJ-China Metrological Standards

    JJG 662-1990 Verification Regulation of Thermo-Magnetic Oxygen Analyzers

    JJ-China Metrological Standards

    JJG 663-1990 Verification regulation for thermal conductivity hydrogen analyzer

    JJ-China Metrological Standards

    JJG 664-1990 (Medical Accelerator X radiation test procedures)

    JJ-China Metrological Standards

    JJG 665-1990 Verification Regulation of Ultrasonic Power Meter for Milliwatt Level

    JJ-China Metrological Standards

    JJG 666-1990 Verification Regulation of Dead-Load Hardness Testing Machine in International Rubber Hardness Degree

    JJ-China Metrological Standards

    JJG 669-1990 Verification Regulation of Load Cell

    JJ-China Metrological Standards

    JJG 696-1990 Verification Regulation of Specular Gloss Meters

    JJ-China Metrological Standards

    JJG 657-1990 Verification Regulation of Detector for Alcoholic Quantity from Breathing -out Gas

    JJ-China Metrological Standards

    JJG(QB)71-1990 (LAMPEN mill beater (Trial) test procedures)

    JJ-China Metrological Standards


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