Describes instruments for the measurement of frequency weighted and time averaged sound-pressure levels. Ensures specified accuracy and stability of an integrating sound level meter and reduces to the practical minimum any differences in equivalent measurements taken with instruments of various makes and models which satisfy the requirements of this standard. Specifies the following characteristics and test methods for integrating sound-level meters:
a)integrating and averaging characteristics;
b)indicator characteristics;
c)overload sensing and indicating characteristics.
WITHDRAWN
IEC 60804:1985 ED1
99.60
Withdrawal effective
Sep 30, 2000
WITHDRAWN
IEC 60804:1985/AMD1:1989 ED1
WITHDRAWN
IEC 60804:1985/AMD2:1993 ED1
WITHDRAWN
IEC 60804:2000 ED2