Hellma calibration standard, glass filter set

Application
Hellma® calibration standard, glass filter set for checking the photometric accuracy and the wavelength accuracy of the spectrophotometers.
Features and Benefits
Accredited to DAkkS Deutsche Akkreditierungsstelle (National accreditation body for the Federal Republic of Germany)
Traceable to NIST (National Institute of Standards and Technology)
Assured Quality of the measurement results
Proven accuracy and reliability
General description
Consisting of :
666-F1 Holmium Oxide glass filter F1 (peaks at 279; 361; 454; 536; 638 nm)
666-F2 Neutral Density glass filter F2 (nominal absorbance 0.25 at 440; 465; 546,1; 590; 635 nm)
666-F3 Neutral Density glass filter F3 (nominal absorbance 0.5 at 440; 465; 546,1; 590; 635 nm)
666-F4 Neutral Density glass filter F4 (nominal absorbance 1.0 at 440; 465; 546,1; 590; 635 nm)
666-F0 Empty filter mount (aluminum frame)
Other Notes
The most current version of Hellma’s handling guidelines for calibration standards can be accessed on the Hellma Analytics web site.
Legal Information
Hellma is a registered trademark of Hellma GmbH