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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 1343-1990 (2πα, 2πβ particle reflectance reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1330-1990 (0.1 to 100 mW laser power secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1345-1990 (γ-ray irradiation technique baseline specification)

    JJ-China Metrological Standards

    JJF 1346-1990 (The X-ray energy (60 ~ 250kV) exposure baseline operating technical specifications)

    JJ-China Metrological Standards

    JJF 1347A-1990 ((10 ~ 50kV) X-ray dose to secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1347B-1990 ((60 ~ 250kV) X-ray dose to secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1348-1990 (?Coγ ray absorbed dose graphite calorimeter reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1349-1990 (Neutron source intensity baseline operating technical specifications)

    JJ-China Metrological Standards

    JJF 1351-1990 (14. 8MeV neutron absorbed dose baseline operating technical specifications)

    JJ-China Metrological Standards

    JJF 1264-1990 (Low-level operation of the technical specifications to vibration secondary standard)

    JJ-China Metrological Standards

    JJF 1350-1990 (Thermal neutron fluence rate benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1214-1990 (Conical taper gauge reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1342-1990 (Low background 4πα, 4πβ activity reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1319-1990 (Color temperature reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1311A-1990 (Luminosity secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1311B-1990 Operating technical norm of secondary standard for luminous intensity

    JJ-China Metrological Standards

    JJF 1311C-1990 (Luminosity secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1312-1990 (The total flux reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1313A-1990 (The total flux secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1313B-1990 (The total flux secondary standard operating technical specifications)

    JJ-China Metrological Standards


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