China 'JJG 1056-2010
' Industry standard english version:
JJ
中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
JJG 1056-2010
Verification regulation of standard hyhones in the frequency range 20 Hz to 3.15 kHz under high hydrostatic pressure (Acoustic coupler reciprocity method) 高静水压下20hz~3.15khz标准水听器检定规程(耦合腔互易法)
Issued Date:2010-03-02
Implemented Date:2010-06-02
Issued by:
The Standardization Administration of the People's Republic of China
GB Standard Code
JJG 1056-2010
Standard Category
China Metrological
Standards
GB Standard English Title
Verification regulation of standard hyhones in the frequency range 20 Hz to 3.15 kHz under high hydrostatic pressure (Acoustic coupler reciprocity method)