China National Standards

China Infrasonic Industry Standards English PDF List

  •  China "Infrasonic" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JJF 1346-2012 Calibration Specification for Infrasonic and Ultrasonic Filters
    次声及超声滤波器校准规范    		 China Metrological Standards
    Infrasonic
    English PDF

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