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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
    JJF 1277-1990 (Watts ultrasonic power secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1278-1990 (Milliwatt ultrasonic power base operating technical specifications)

    JJ-China Metrological Standards

    JJF 1279-1990 (Milliwatt ultrasonic power secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1280-1990 (Air conduction hearing level zero baseline operating technical specifications)

    JJ-China Metrological Standards

    JJF 1281-1990 (Bone conduction hearing level zero baseline operating technical specifications)

    JJ-China Metrological Standards

    JJF 1282-1990 (Charpy impact energy baseline (Charpy) operating technical specifications)

    JJ-China Metrological Standards

    JJF 1284-1990 (DC EMF secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1286-1990 (DC resistance of the secondary standard operating technical specifications)

    JJ-China Metrological Standards

    JJF 1272-1990 (Reference sound pressure air (free field) operating technical specifications)

    JJ-China Metrological Standards

    JJF 1344-1990 (2πα, 2πβ secondary standard particle emission rate operating technical specifications)

    JJ-China Metrological Standards

    JJF 1329-1990 (From 0. 1 to 100 mW laser power reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1334-1990 (Operating technical specifications to mirror gloss benchmark)

    JJ-China Metrological Standards

    JJF 1335-1990 Operating Technical Norm of Secondary Standard for Spectral Reflectance in the Range of 800~2000 nm

    JJ-China Metrological Standards

    JJF 1336-1990 (4πβ (PC) -γ activity in line with the benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1337-1990 (4πβ (PC) -γ activity in line with the benchmark operating deputy technical specifications)

    JJ-China Metrological Standards

    JJF 1338-1990 (4πβ (LS) activity reference operating technical specifications)

    JJ-China Metrological Standards

    JJF 1339-1990 (4πβ (LS) -γ activity in line with the benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1340-1990 (4πχ (PPC) -γ activity in line with the benchmark operating technical specifications)

    JJ-China Metrological Standards

    JJF 1341-1990 (4πβ (PPC) -γ activity in line with the benchmark operating deputy technical specifications)

    JJ-China Metrological Standards

    JJF 1332-1990 (The laser energy secondary standard operating technical specifications)

    JJ-China Metrological Standards


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