This classication provides methods for calculating single-number ratings of low-frequency impact noise transmission, based on one-third octave band impact noise levels generated by the standard tapping machine as described in Test Methods E492 and E1007.
The proposed standard addresses impact noise in a frequency range not addressed by other ASTM standards. It will be used by designers and testing agencies.
Keywordsoors; low-frequency impact rating; LIR; low-frequency impact insulation class; LIIC; tapping machine
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top