The present invention provides an ultraviolet inspection tool having excellent color formability with respect to light having a wavelength of 222 nm even in a case where an irradiation amount of the light having a wavelength of 222 nm is small, an ultraviolet inspection kit, and an ultraviolet inspection method. The ultraviolet inspection tool of the present invention is an ultraviolet inspection tool including an ultraviolet-sensing layer containing a color-forming agent and an acid generator, in which the color-forming agent has at least one selected from the group consisting of a lactone structure, a lactam structure, a sultone structure, a sultine structure, a ring-opened structure of these structures, and an azobenzene structure, a molecular weight of the acid generator is 600 or less, and a mass ratio of a content of the acid generator to a content of the color-forming agent is 1.01 to 40.00.

The present invention provides an inspection tool and an inspection method, with which it is possible to easily discriminate whether or not irradiation with light having a wavelength of 222 nm and light having a wavelength of 254 nm is performed even under sunlight. The inspection tool of the present invention includes a sensing portion and a reference portion, in which the sensing portion includes a sensing layer which senses at least light having a wavelength of 200 to 254 nm, the reference portion includes the sensing layer and a transparent layer, and the transparent layer satisfies a relationship of Expressions (1) and (2),
0%TMA.sub.200 to 254<15.0%Expression (1)
50.0%<TMI.sub.360 to 800100%Expression (2) in Expression (1), TMA.sub.200 to 254 represents a maximum transmittance of the transparent layer in a wavelength range of 200 to 254 nm. in Expression (2), TMI.sub.360 to 800 represents a minimum transmittance of the transparent layer in a wavelength range of 360 to 800 nm.

The present invention provides an inspection tool and an inspection method, with which it is possible to easily discriminate whether or not irradiation with light having a wavelength of 222 nm and light having a wavelength of 254 nm is performed even under sunlight. The inspection tool of the present invention includes a sensing portion and a reference portion, in which the sensing portion includes a sensing layer which senses at least light having a wavelength of 200 to 254 nm, the reference portion includes the sensing layer and a transparent layer, and the transparent layer satisfies a relationship of Expressions (1) and (2),
0%TMA.sub.200 to 254<15.0%Expression (1)
50.0%<TMI.sub.360 to 800100%Expression (2) in Expression (1), TMA.sub.200 to 254 represents a maximum transmittance of the transparent layer in a wavelength range of 200 to 254 nm. in Expression (2), TMI.sub.360 to 800 represents a minimum transmittance of the transparent layer in a wavelength range of 360 to 800 nm.