Light Filter Dual Absorbance Stray 1.5au , Each

Details:

Fuv dual absorbance stray light filter- 1.5Au (3%t)standard^ fuv-series (200-700nm) dual absorbance stray light filter- 1.5Au (3%t)uv/vis photometric accuracy & stray light calibration standard, dimensions: 12.5X12.5X45 mm, nist-traceable filter that validates both stray light and absorbance