“ARTICLE 1 - Terms and Definitions”. life.itu.ch. 国際電気通信連合 (19 October 2009). 2019年3月4日閲覧。 “industrial, scientific and medical (ISM) applications (of radio frequency energy): Operation of equipment or appliances designed to generate and use locally radio frequency energy for industrial, scientific, medical, domestic or similar purposes, excluding applications in the field of telecommunications.”