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

Classification of fluorescent lamps and light emitting diodes by chromaticity and colour rendering property
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2019

General rules for heat balance (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1991