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Calibration Filters
Calibration Filters
Newport calibration filters are an essential accessory for spectrophotometer users. Designed for frequent use, the filter elements are mounted in a standard cuvette sized holder which protects the filter element for damage due to handling.
- Calibrated using NIST certified standards
- Optical density and wavelength standards
- Absorptive filters for visible spectrum
- Metallic filters for UV-visible spectrum
- Blank filter holder for dual-beam balance See All Features
Features
Blank Filter Holder for Dual-beam Balance
When calibrating a dual-beam spectrophotometer, it is important to establish the same geometry in both the reference and sample beam. We offer a blank filter holder to provide the necessary symmetry.
Ultraviolet and Visible Spectrum Coverage
Our calibrated absorptive neutral density filters provide reference data for visible spectrum calibrations and our calibrated metallic neutral density filters provide data for ultraviolet spectrum calibrations. Together, they cover the range from 250 nm to 635 nm.
Optical Density and Wavelength Standards
We offer calibrated neutral density filters ranging from OD 0.1 to OD 1.0 for optical density calibrations and a Holmium Oxide filter for wavelength calibrations.
Calibrated with NIST Certified Standards
All calibrations are derived from National Institute of Standards and Technology (NIST) Standard Reference Material (SRM). SRMs are manufactured by NIST Labs and calibrated using rigorous protocols to insure ultimate accuracy. We use SRMs as reference during our filter calibration process.
