This standard provides general requirements for the construction and performance of class A and class B magnetic compasses, binnacles and direction-finding devices for use on ships, for navigational purposes in accordance with the regulations in force, for use with direct reading devices, This page provides information on liquid magnetic compasses. —It can also be applied to reflection type, projection type, or direction transmission type.
JIS F 9101:1998 history
2015JIS F 9101:2015 Ships and marine technology -- Marine magnetic compasses, binnacles and azimuth reading devices