Quality management and quality assurance standards Part 1: Guidelines for selection and use
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1994

Lighting for outdoor track and field, outdoor soccer fields and rugby fields
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1997

General rules of recommended lighting levels (Amendment 1) (Foreign Standard)
Amendment by Japanese Industrial Standard / Japanese Standards Association, 01/01/2011