Dielectric film interference filter standard material (B) set
Praseodymium and neodymium filter standard material (B) set
Holmium oxide filter standard material (B) set
Visible light region transmittance Filter (B) set
Stray light filter standard material (B) set
Low-pressure mercury lamp wavelength standard set
UV-visible region transmittance filter set
Attenuator set
Portable standard box only
UV-visible spectrophotometer measurement and calibration device