This standard specifies the general requirements, measurement systems, measurement conditions, measurement procedures, data records, measurement reports, etc. for measuring the acoustic performance parameters of anechoic tiles using pulse tubes and traveling wave tubes. This standard is applicable to the measurement of acoustic performance parameters such as sound pressure reflection coefficient R, sound pressure transmission coefficient T and sound absorption coefficient α of anechoic tiles.
CB 20113-2014 history
2014CB 20113-2014 Measurement method for acoustical parameters of anechoic tile in acoustical tube