Solutions for Optical Spectroscopy Materials, Coatings, & Standards

Reflectance Wavelength Calibration Standards

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Contact Art Springsteen: Email or (603)526-2420


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Rare Earth Oxide Standards

Designed for the calibration of UV-Vis-NIR spectrophotometers, wavelength calibration standards display sharp absorbance peaks over much of the UV-Vis-NIR spectral range. The mixture of rare earth oxides is chosen to give the best coverage over the wavelength range of interest. Both UV-Vis and Vis-NIR standards are available in custom sizes and configurations.


UV-Vis Calibration Standards

A mixture of holmium and erbium oxides in an inert, durable, spectrally neutral matrix, Avian Technologies Wavelength Calibration Standards are traceable to the National Research Council Canada (NRC) and NIST. Available in 1.25" (37mm) and 2.0" (50.8mm) diameter sizes, these standards (calibrated from 250-850 nm) are ideal for the calibration of UV-Vis spectrophotometers.

Standards come in a Delrin holder with cover.

uvvis

Part #

Description

WCR-FW-UVVIS-01 1.25" diameter
WCR-FW-UVVIS-02 2.0" diameter

Near Infrared Calibration Standards

A mixture of dysprosium, holmium, and erbium oxides in an inert, durable, spectrally neutral matrix, Avian Technologies Wavelength Calibration Standards are traceable to the NRC and NIST. Available in 1.25" (37 mm) and 2" (51 mm") diameter sizes. These standards are ideal for calibration of Vis-NIR spectrophotometers. Standards come in a Delrin holder with cover.

visnir

Part #

Description

WCR-FW-VisNIR-01 1.25" diameter
WCR-FW-VisNIR-02 2.0" diameter

Packed Powder Wavelength Calibration Standard

at_wc

Part #

Description

WC-PP-1920a-01
WC-PP-1920a-02
Identical to NIST SRM-1920a, this standard is a mixture of highly purified holmium oxide, dysprosium oxide, and erbium oxide in a hermetically sealed black anodized aluminum holder with either 2" (52mm) or 1.5" (37 mm) optical glass window. The standards are made in large batches and each batch is calibrated traceable to NIST/NRC.
EWC-P1920a-02c EWC-P1920a-02c compliments the encapsulated gray scale standards . The wavelength standard has the same components as the National Institute of Technology’s SRM-1920a, with a small amount of an inert, spectrally non-absorbing binder. Unlike sintered equivalents of SRM-1920a, this standard exhibits no peak shifting and is both durable and stable. The spectral features are the same as WC-PP-1920a
WCR-2066-025C (Calibrated)
WCR-2066-025U (Uncalibrated)
The reflectance version of the transmittance wavelength calibration standard, is the equivalent of NIST SRM-2036. The standard is ideal for calibration of the wavelength scale of both scanning and Fourier transform near-infrared spectrometers used in the reflectance configuration. The standard consists of a 1.0” diameter WCT-2065 filter backed with Avian Technologies Fluorilon™ FW-99 diffuse reflectance material, in a black anodized aluminum holder designed to fit most spectrometers. This standard is usable in the 320-2200 nm range.

 

For detailed information on SRM-1920a, please see NIST Special Publication SP-250-48 (Spectral Reflectance).