For sunglasses lenses where is there equipment that checks the degreeof blocking?... for UVA, UVB, UVC, blue, HEV

a.
For sunglasses lenses where is there equipment that
checks the degree of blocking?... for
.. UVA
.. UVB
.. UVC
.. blue
.. HEV

Massachusetts Eye and Ear Infirmary departments
appear not to know where or if they have the equipment
http://www.meei.harvard.edu

b.
What are the names of this kind of equipment?...