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China JJ GB Standards Search System  

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 499-1987 Verification Regulation of Precision Dewpoint Hygrometer

    JJ-China Metrological Standards

    JJG 507-1987 Verification Regulation of Step Attenuators

    JJ-China Metrological Standards

    JJG 506-1987 Verification Regulation of DC Comparator Bridge

    JJ-China Metrological Standards

    JJF 1007-1987 Temperature Metrological Terms and Their Definitions

    JJ-China Metrological Standards

    JJG 2014-1987 Verification scheme of radion frequency and microwave noise measuring instruments

    JJ-China Metrological Standards

    JJG 505-1987 Verification Regulation of D. C. Comparator Potentiometer

    JJ-China Metrological Standards

    JJG 503-1987 Verification regulation of model PB-2 decimal frequency meter

    JJ-China Metrological Standards

    JJG 502-1987 Verification Regulation of Frequency Synthesizer

    JJ-China Metrological Standards

    JJG 504-1987 Verification regulation of model CLX-2/CLX-20A/B parallel-plate coaxial slotted line with big size connector

    JJ-China Metrological Standards

    JJG 500-1987 Verification Regulation of Analytical Instrument of Trace Water by Electrolytic Method

    JJ-China Metrological Standards

    JJG 488-1987 (Chinese Industry Standard)

    JJ-China Metrological Standards

    JJG 497-1987 (Chinese Industry Standard)

    JJ-China Metrological Standards

    JJG 496-1987 (Chinese Industry Standard)

    JJ-China Metrological Standards

    JJG 495-1987 Verification Regulation of the DC Magnetoelectric Galvanometer

    JJ-China Metrological Standards

    JJG 494-1987 High Voltage Electrostatic Voltmeter

    JJ-China Metrological Standards

    JJG 493-1987 Verification regulation for audio magnetic properties of standard specimen of soft magnetic materials (A-C magnetization curne and amplitude permeability)

    JJ-China Metrological Standards

    JJG 492-1987 Verification Regulation of Cesium Beam Frequency Standard

    JJ-China Metrological Standards

    JJG 49-1987 (Bourdon tube pressure gauge and vacuum gauge precision test procedures)

    JJ-China Metrological Standards

    JJG 491-1987 Verification regulation of 1GHz sampling oscilloscope

    JJ-China Metrological Standards

    JJG 501-1987 (Chinese Industry Standard)

    JJ-China Metrological Standards


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