Hellma Hellma calibration standard F390 for checking the photometric accuracy (0.04 Abs) in the Vis range , Dimensions: 45 x 12,5 x 12,5 mm — Not available in United Kingdom

Hellma Hellma calibration standard F390 for checking the photometric accuracy (0.04 Abs) in the Vis range , Dimensions: 45 x 12,5 x 12,5 mm — Not available in United Kingdom | css.shopping