Gilford Instrument Labs 202 Absorbance Standards Filter

Gilford Instrument Labs 202absorbance Standards Filter

Gilford Instrument Laboratories 202 Optical Density Standards are a set of optical absorbance/optical density filters used as calibration standards for spectrophotometers, densitometers, and other optical measurement instruments. These standards typically consist of neutral density filters with known optical densities, enabling accurate calibration and verification of instrument performance for precise analytical measurements.

Used for standardizing spectrophotometers by providing known optical density references.