Techkon SpectroDens Manual page 78

Calibration:
Standards:
Place
D-61462 Königstein
The integrated spectral sensor is calibrated by a white calibra-
tion. After performing a white calibration with the supplied
absolute white standard integrated in the charging console,
the device is long term stable. We recommend to make a white
calibration before every measurement series, to ensure the
device is calibrated correctly.
The remission values documented on back of the charging console
are derived from a ceramic white standard, which is referenced to
measurements taken and certified by the German Institute for
Material Testing (Bundesanstalt für Materialprüfung, BAM).
The measurement device is manufactured according to the
recommendations of the technical standards DIN 5033 part 1-9,
CIE, DIN ISO 16 536 part 1+2 and ISO 5-3.
The accuracy of the device is checked during the manufacturing
by spectral measurements on color samples which were measu-
red and certified by the German Institute for Material Testing
(Bundesanstalt für Materialprüfung, BAM).
The calculation of colorimetric values is according to the for-
mulas and tables of DIN 6174, DIN 5033 part 1-9 and CIE.
The calculation of densitometric values is according to the for-
mulas and tables of DIN 16527 part 3, ISO 5-3 and the hand-
book of standardization of the German Printing and Media
Industries Federation (Bundesverband Druck und Medien e.V.)
and Fogra (Forschungsgemeinschaft Druck e.V.).
Date Signature