Certified reference materials for qualifying spectrophotometer as a complete set
To maintain constant good measurement results, a regular review of the accuracy of the spectrophotometer is required. With the use of certified reference materials from Hellma Analytics, you make sure that your equipment qualifications meet the requirements of the pharmacopoeias and fulfill your internal quality requirements, at the same time you reach the international comparability of your measurement results. The certified reference materials (calibration standards) of the DIN EN ISO 17025 accredited Hellma Analytics calibration laboratory are traceable to the primary standards of NIST (National Institute of Standards and Technology) and meet the requirements of the major pharmacopoeias (e.g. EP, DAB, USP).
Your benefits:
-High quality of the measurement results
-International comparability of measurement results
-Meeting the requirements of the major pharmacopoeias (EP, DAB, USP)
-Results traceable to NIST primary standards
-30 years warranty* on the reference materials
Scope of delivery:
-Certified reference materials (Calibration Standards) in quality storage box
-DAkkS Calibration Certificate (DIN 17025)
-Handling guidelines
Glass Filters 666-S000: For testing spectrophotometers. Photometric accuracy and wavelength accuracy in the visible spectral region.

Liquid Filters 667.033-UV: For testing spectrophotometers according to European Pharmacopoeia, wavelength accuracy, photometric accuracy, stray light behaviour, resolution.

Type 666-S000
Capacity 666-F1 666-F2 666-F3 666-F4 666-F0
Material Holmium Oxide Glass Filter Neutral Density Glass Filter NG 11 Neutral Density Glass Filter NG 5 Neutral Density Glass Filter NG 4 Empty Filter Mount
Wavelength 279, 361, 453, 536, 638 440; 465; 546,1; 590; 635 440; 465; 546,1; 590; 635 440; 465; 546,1; 590; 635 nm