From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Conductance test results for different types of wax paper at varying temperatures.
| Identifier | ExFiles\Box 69\2\ scan0023 | |
| Date | 10th October 1930 | |
| -2- EFC4/A110.10.30 contd. Standard wax paper. Temperature Conductance. 18°C. 0 40°C. 0 60°C. .001 micromhos 80°C. .002 " 100°C. .004+ " Plain white paper impregnated with wax. Temperature Conductance. 18°C. 0 40°C. 0 60°C. .001 micromhos 80°C. .004 " 100°C. .015 " Plain white paper unwound from coil after being impregnated with wax on the coil. Temperature Conductance. 18°C. 0 40°C. 0 60°C. .004 micromhos 80°C. .008 " 100°C. .025 " Delco-Remy wax paper unwound off condenser. Temperature Conductance. 18°C. 0 40°C. 0 60°C. 0 80°C. 0 100°C. .004- micromhos All the conductance tests were carried out after the samples of paper had been first baked at 100°C. for at least one hour, as it was found that the conductance was very much less and more stable after such baking. | ||