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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
    JJF 1217-1990 Operating technical norm of temperature secondary standard in the range 90. 188 to 273. 15 K

    JJ-China Metrological Standards

    JJF 1230-1990 (200 ~ 2500 MPa vacuum reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1231-1990 (Kg weight benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1232-1990 (Kg weight testified benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1233A-1990 (Kg weight Vice benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1233B-1990 (Kg weight Vice benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1234-1990 (5 × 10?Cattle benchmark dynamometer operation Technical Specifications)

    JJ-China Metrological Standards

    JJF 1235-1990 (1 × 10?Cattle benchmark dynamometer operation Technical Specifications)

    JJ-China Metrological Standards

    JJF 1236-1990 (1 × 10?Cattle benchmark dynamometer operation Technical Specifications)

    JJ-China Metrological Standards

    JJF 1237-1990 (3 × 10?Cattle secondary standard dynamometer operation Technical Specifications)

    JJ-China Metrological Standards

    JJF 1238-1990 (5 × 10?Cattle benchmark dynamometer operation Technical Specifications)

    JJ-China Metrological Standards

    JJF 1227-1990 (Gas flow benchmark operating technical specifications of 3 to 30 m3/h)

    JJ-China Metrological Standards

    JJG 686-1990 Verification Regulation of Hot Meter

    JJ-China Metrological Standards

    JJG 674-1990 Verification regulation of standard seawater

    JJ-China Metrological Standards

    JJG 676-1990 Verification regulation of working measuring vibration instruments

    JJ-China Metrological Standards

    JJG 677-1990 Verification regulation of interference type methane measuring device

    JJ-China Metrological Standards

    JJG 678-1990 (Catalytic combustion of methane detector test procedures)

    JJ-China Metrological Standards

    JJG 679-1990 Verification Regulation of cold Atomic Absorption Analyzer of Mercury

    JJ-China Metrological Standards

    JJG 680-1990 Verification Regulation of Measuring Apparatus for Dust Contentin Stack

    JJ-China Metrological Standards

    JJG 681-1990 Verification Regulation of Dispersive Infrared Spectrophotometers

    JJ-China Metrological Standards


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