What is BS EN 61012 - Filters used in measuring the audible sound in presence of ultrasound about?
BS EN 61012 is an international standard used for Filters. This helps in manufacturing good quality electronic filters used in measuring the audible sounds in presence of ultrasound.
BS EN 61012 standard specifies the electrical characteristics of a U-weighting filter mainly for use with sound level meters meeting the requirements of IEC 651 for the measurement of audible sound in the presence of ultrasound.
Who is BS EN 61012 - Filters used in measuring the audible sound in presence of ultrasound
BS EN 61012:1998 history
1991BS EN 61012:1998 Filters for the measurement of audible sound in the presence of ultrasound
1991BS EN 61012:1991 Filters for the measurement of audible sound in the presence of ultrasound