National Metrological Verification Regulations of the People's Republic of China
Latest
JJG 1019-2007
Scope
This procedure is applicable to the initial verification, subsequent verification and in-use inspection of WS1 and WS2 working standard microphones that meet the requirements of IEC 61094-4-1995 (WS is the abbreviation of working standard).
JJG 1019-2007 Referenced Document
JJF 1001-1998 General Terms in Metrology and Their Definitions
JJF 1034-2005 Metrological Terms and their Definitions for Acoustics
JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement
JJG 175-1998 Verification Regulation of Measuring Condenser Microphones