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).
Check of resistances for an Alcohol-Rose Bengal chemical leak from Dr. Turner.
| Identifier | ExFiles\Box 54\3\ Scan238 | |
| Date | 24th July 1924 | |
| X4645 EFC. WA.{Mr Wallis}67. 24.7.24. X.4645. ALCOHOL-ROSE BENGAL CHEMICAL LEAK FROM DR. TURNER. CHECK OF RESISTANCES. The resistance of the above leak at various positions of the plummet in the solution, has been observed and tabulated against the value specified on the scale, at a temperature of 23.5°C:- Scale reading micromhos. Actual observed resistance (ohms). Specified resistance (Corrected for temp.). Nominal resistance at 15°C. 2 2.2 2.5 3.0 3.5 4.0 5.0 468,000 430,000 415,000 322,000 295,500 202,000 163,000 434,800 395,000 348,000 289,900 248,800 217,400 174,000 500,000 455,000 400,000 333,000 286,000 250,000 200,000 It will be seen that at the position of about from 3.5 micromhos to 4.0 micromhos the resistance of liquid is about correct to the scale reading. HEW. | ||