General rules of recommended lighting levels (Foreign Standard)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2010

General requirements for bodies operating assessment and certification/registration of quality systems (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1996

Lighting of tunnels for motorrized traffic (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1990