LIGHT TRANSMISSION MEASUREMENTS ON GREENHOUSE COVER MATERIALS

Investigations on functional characteristics of transparent and translucent covering materials and their measuring methods.

The 430 Commission "Photometric properties of materials" of the "Comité National Belge de l’Eclairage (C N B E)", affiliated to the "Commission Internationale de l’Eclairage (C I E)" is engaged in studying the following points concerning the transparent & translucent materials (glass and plastics) who can be used in covering of greenhouses and other buildings:

1. establishment of a table giving the functional characteristics of materials, essential to studies concerning building illumination, with extension to energetic properties as far as the problems of building conditioning justify it;

2. establishment of a list of fundamental data who can be measured, with description of trial process;

3. establishment of estimating methods of the functional characteristics (1) from the fundamental measured data (2).

The speaker, promotor of the 430 Commission of C N B E and responsible of the higher described work, gives some explanations about these three points.

Symposium on Plant Environment in Glasshouses

DR. A. NISEN

https://doi.org/10.17660/ActaHortic.1968.6.2