HI801-11 Holmium Filter Validate HI801 and HI802 iris® Wavelength Accuracy The HI801-11 is a holmium oxide glass ¡lter that is used to validate the wavelength accuracy of the HI801 and HI802 iris spectrophotometer. The ¡lter is mounted in a 10 mm square anodized holder and comes with a plastic holder that protects the ¡lter when not in use. • Glass filter mounted in anodized aluminum holder • Fits all spectrophotometers that can accommodate 10 mm square cuvettes • Absorbance peaks measured at 361, 446, 536, and 637 nm. • Holmium Oxide Filter · Supplied with certificate of analysis traceable to SRM 2034 · All values are certified and have an uncertainty of less than 0.1 nm · Packaged in light tight plastic cuvette holder Holmium Holmium is a silvery white, malleable element that reacts with oxygen to form holmium oxide. Glasses that contain holmium oxide or holmium oxide solution are useful in the calibration of spectrophotometers due to their sharp absorption peaks in the visible spectrum. The National Institute of Technology (N.I.S.T.) uses a holmium oxide solution sealed into silica cuvettes as the standard reference material (SRM 2034) for traceability. The holmium oxide solution is prepared with holmium oxide dissolved in perchloric acid. This solution has many wellde¡ned absorption bands. The SRM 2034 was found to be stable for up to thirty years.* The HI801-11 is traceable to SRM 2034 and is supplied with certi¡cate that identi¡es the peak absorbance values of the ¡lter within 0.1 nm of uncertainty. The HI801-11 holmium oxide ¡lter is used with the wavelength check mode found in the HI801 and HI802 iris spectrophotometer. The ¡lter is placed into the meter and the wavelength check mode is then used to verify the wavelength positioning. Once the check is complete the meter will display the wavelength peaks and they are compared to the values found on the certi¡cate. The values should be within ±1.5 nm of the certi¡ed value. * NIST Special Publication 260-192 Specifications HI801-11 Peak Wavelengths @ 25°C 361, 446, 536, and 637 nm. Actual value traceable to SRM 2034 found on COA Peak Wavelength Uncertainty @ 25°C <0.1 nm for all peaks Dimensions 10 x 10 mm Recommended use Wavelength check of HI801 and HI802 iris Ordering Information HI801-11 is supplied with quality certificate 10 Photometers 10.35 www.hannainst.com |
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