You Searched for - is 9620 (active,concurrent running)
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    IS 9620 (Active,Concurrent Running) : 1980     (Reaffirmed Year : 2019 )

    Guide for Units Used in Air Quality Measurements

    Technical Committee : CHD 35

    Superseeded by : IS 9620 : 2024
    Status : withdrawn

    No. of Amendments : 0