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  •  China "GB" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    GB/T 11450.1-1989 Hollow metallic waveguides--Part 1:General requirement and measuring methods

    China National - GB Standards
    GB/T 11449.6-1989 Flanges for waveguides--Part 7:Relevant specification for flanges for square waveguides

    China National - GB Standards
    GB/T 11447-1989 Methods of measurement of fibre-optic plates

    China National - GB Standards
    GB 11532-1989 Hygienic standard for raffinate (50”«220”ę) in the air of workplace

    China National - GB Standards
    GB 11531-1989 Hygienic standard for copper dust and fume in the air of workplace

    China National - GB Standards
    GB 11530-1989 Hygienic standard for tricresyl phosphate in the air of workplace

    China National - GB Standards
    GB 11529-1989 Hygienic standard for cobalt and its oxides in the air of workplace

    China National - GB Standards
    GB 11528-1989 Hygienic standard for grinding wheel dust in the air of workplace

    China National - GB Standards
    GB 11527-1989 Hygienic standard for silicon carbide dust in the air of workplace

    China National - GB Standards
    GB 11526-1989 Hygienic standard for chlorothalonile in the air of workplace

    China National - GB Standards
    GB 11525-1989 Hygienic standard for acrylamide in the airof workplace

    China National - GB Standards
    GB 11524-1989 Hygienic standard for ethylene chlorohydrin in the air of workplace

    China National - GB Standards
    GB/T 1526-1989 Information processing--Documentation symbols and conventionsfor data£¬ program and system flowcharts£¬ program network charts and system resources charts

    China National - GB Standards
    GB/T 11383-1989 Information processing--8-Bit code for information interchange--Structure and rules for implementation

    China National - GB Standards
    GB/T 11444.3-1989 Transmitter£¬ receiver and ground communication equipment used in domestic satellite communication earth stations--Technical requirements--Part 3:Equipment for television/frequency modulation

    China National - GB Standards
    GB/T 11443.4-1989 Domestic satellite communication earth stations--General technical requirements--Part 4:Television/ frequency modulation carrier channel

    China National - GB Standards
    GB/T 11443.1-1989 Domestic satellite communication earth stations--General technical requirements--Part 1:Common performance

    China National - GB Standards
    GB/T 11420-1989 Measurement of specular gloss of vitreous and porcelain enamels

    China National - GB Standards
    GB/T 11418-1989 Determination of resistance to heat of vitreous andporcelain enamels

    China National - GB Standards
    GB/T 11415-1989 Laboratory sintered (fritted)filters--Porosity grading£¬ classification and designation

    China National - GB Standards
    GB/T 10547-1989 Citrus storage

    China National - GB Standards
    GB 11410-1989 Technical bases of HFBC coverage

    China National - GB Standards
    GB/T 11346-1989 Radiographs for inspection grading of gas porosity (round) in aluminium alloy casting

    China National - GB Standards
    GB/T 1840-1989 Modules of cylindrical gear with circular arc profiles

    China National - GB Standards
    GB/T 11366-1989 Basic terminology of planetary drives

    China National - GB Standards
    GB/T 11365-1989 Accuracy of bevel and hypoid gears

    China National - GB Standards
    GB/T 11351-1989 Mass tolerances for castings

    China National - GB Standards
    GB/T 11373-1989 The general principle of surface preparation of metallic substrate for thermal spraying

    China National - GB Standards
    GB/T 11372-1989 Rust prevention terminology

    China National - GB Standards
    GB/T 11338-1989 Analytical methods of potassium-40 in water

    China National - GB Standards

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