National Metrological Verification Regulations of the People's Republic of China
Scope
This procedure applies to the T1201 VOR (very high frequency omnidirectional radio beacon), ADF (automatic direction finder), ILS (instrument landing system) DFIU (discrete functional interface tester) used in aircraft maintenance in the civil aviation system (hereinafter referred to as the test instrument) initial calibration, subsequent calibration and in-use inspection.
JJG(民航) 0084-2005 Referenced Document
JJF 1001-1998 General Terms in Metrology and Their Definitions
JJF 1002-1998 The Rules for Drafting National Metrological Verification Regulation