UK Starna filter calibration material - wavelength (holmium oxide)/absorbance

Traceability:allStarnaThe calibration standard substances are allNISTTraceable and withUKAS ISO/IEC 17025andISO Guide 34Recognized calibration certificate

Purpose:Used for calibrating the wavelength and absorbance in the visible light range of a spectrophotometer

Product description: Filter reference materials are practical tools for calibrating the wavelength and absorbance accuracy of visible spectrophotometers. Like its liquid standard substance, holmium oxide glass filters have the same characteristic peaks suitable for calibrating wavelengths in the visible light range. This filter product combines holmium oxide with an absorbance of1AOn the neutral density filter, this can simultaneously correct the absorbance accuracy.

The filter contains holmium oxide, which is bonded onto a neutral density filter. The filter is installed stress free on an anodized aluminum bracket, equipped with a sliding cover to protect the surface of the filter. Melting of glass/Melting will have a small uncertain impact on peak position, thereforeStarnaEach filter is individually calibrated.

360nm-640nmWithin the wavelength range, it has7A distinct characteristic peak and possessing1AThe absorbance.

7Authentication wavelength for individual peaks:361, 419, 446, 454, 460, 537 and 638 nm.

Explanation: The above certified wavelength values are for reference only, and the actual values are determined by the spectral bandwidth. The certification certificate provided with the product specifies1nmAuthentication wavelength under bandwidth. If the customer needs,StarnaCan provide authentication values for other bandwidths and wavelengths.

The absorbance value is usually1AThe authentication wavelength is between the peaks in the spectrum of neodymium praseodymium oxide431, 516, 557,594and623 nm.

Product Code

Holmium oxide/neutral density glass filter RM-HG/1ND