China National Standards

China stopwatch Industry Standards English PDF List

  •  China "stopwatch" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JJG 237-2010 Verification regulation of stopwatches
    秒表检定规程    		 China Metrological Standards
    stopwatch
    English PDF
    JJG(QJ)25-1987 (XD-40 type electric stopwatch calibrator test procedures)
    		China Metrological Standards
    stopwatch
    English PDF

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