"Roentgen" (R) means a special unit of exposure. One roentgen equals 2.58 x 10-4 coulombs per kilogram of air.
Nev. Admin. Code § 459.092
NRS 459.201
"Roentgen" (R) means a special unit of exposure. One roentgen equals 2.58 x 10-4 coulombs per kilogram of air.
Nev. Admin. Code § 459.092
NRS 459.201