non-ionizing; radiation policy: Manual 28.11+; black light goes here or under ULTRAVIOLET RAYS depending on text but unspecified index under ULTRAVIOLET RAYS
Scope Note
That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.
That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.
