This standard specifies the noise level of sounds generated by general-purpose sewing machines, cycle sewing machines, and automatic machines (hereinafter referred to as sewing machines), such as industrial lockstitch machines and industrial overlock stitch machines. Specifies the method for measuring at the standard ear position for sewing manufacturers.
JIS B 9064:1998 history
1998JIS B 9064:1998 Method of sound level measurement for industrial sewing machine
1981JIS B 9064:1981 Method of sound level measurement for industrial sewing machine