International Journal of Biometeorology

, Volume 23, Issue 1, pp 69–75 | Cite as

Relationship between the diffusion time of ions in gelatin films and the absolute humidity in free air

  • H. Baumer
  • J. Eichmeier


At a printing-works in Munich it was observed over a period of several years, in fully air-conditioned rooms, that the diffusion times of ions, penetrating a gelatin layer during the etching process of the printing cylinders, showed irregular fluctuations about the expected value within the range from −20% to +110%. Concurrent measurements of several meteorological parameters led to the detection of a strong linear relationship between the diffusion time of ions and the absolute humidity (AH-value) of the outside air. The AH-value seems to act as an indicator for part of the natural electromagnetic radiation affecting the properties of the gelatin film.


Radiation Plant Physiology Linear Relationship Gelatin Electromagnetic Radiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Swets & Zeitlinger B.V. 1979

Authors and Affiliations

  • H. Baumer
    • 1
  • J. Eichmeier
    • 2
  1. 1.Fa. F. Bruckmann KGVerlag und Graphische KunstanstaltenMünchen 19Germany
  2. 2.Institut für Grundlagen der ElektrotechnikTechnische Universität MünchenMünchen 2Germany

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