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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 1019-1990 Postcheck Method for 60Co Radiothorapy Beam Absorbed Dose

    JJ-China Metrological Standards

    JJF 1020-1990 Dose Assurence Monitoring Method for γ-ray Radiation Processing Level

    JJ-China Metrological Standards

    JJF 1021-1990 The technical examination norm for metrology accreditation of testing unit for testing of product quality

    JJ-China Metrological Standards

    JJF 1201-1990 (3. 39 micron wavelength reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1202-1990 Operating technical norm of 0. 633μm wavelength primary standard

    JJ-China Metrological Standards

    JJF 1203A-1990 (0.633 micron wavelength secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1203B-1990 (0.633 micron wavelength secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1216-1990 (90. 188 ~ 273. 15K reference operating temperature specification)

    JJ-China Metrological Standards

    JJF 1205-1990 (0.640 micron wavelength reference operating technical specifications)

    JJ-China Metrological Standards

    JJG(GY)001-1990 (PAL vectorscope test procedures)

    JJ-China Metrological Standards

    JJF 1207-1990 (Dial tester benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1208-1990 (Multi-tooth indexing table reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1209-1990 Operating technical norm of laser small angle inteferometer primary standard

    JJ-China Metrological Standards

    JJF 1210-1990 (Surface roughness reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1211-1990 (Flatness reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1212-1990 Operating technical norm of secondary standard of flatness

    JJ-China Metrological Standards

    JJF 1213-1990 (Gear helix reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1285-1990 (DC resistance of the base operating technical specifications)

    JJ-China Metrological Standards

    JJF 1215-1990 Operating technical norm of temperature primary standard in the range from 13. 81 to 273. 15 K

    JJ-China Metrological Standards

    JJF 1204-1990 (0.612 micron wavelength reference operating technical specifications)

    JJ-China Metrological Standards


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