The text of the decision is “It is recommended that the Secretariat Committee should study all methods for the classification of diffusing materials.”
2.
It was also recommended that “National Committees should study the diffusion produced by moulded glasses … and … the best method of defining their diffusing properties.”
3.
ProkopM., “Classification and nomenclature of glass.” Published (1939) by Elektrotechniky svaz ceskoslovensky, Prague (in Czech).
4.
5.
Proc. C.I.E. (1935).
6.
RydeJ. W., and CooperB. S., Proc. Roy. Soc., A, 131, 464 (1931). J. S. G. T. 16, 408 (1932), Illum. Eng. (Lond.) 33, (Feb., 1933).
