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).
Laboratory report on the properties of a treated castor oil sample used by the R.A.F., comparing it to a previous sample.
| Identifier | ExFiles\Box 32\4\ Scan219 | |
| Date | 7th January 1925 | |
| X1588 Hs{Lord Ernest Hives - Chair}/Mr Warwick. H12/EA7.1.25. Laboratory. Report No.L307. Re Sample of Treated Castor Oil as used by the R.A.F. Specific Gravity ----- 0.961 Mineral acid -------- Negligible. Total acid --------- 1.48 % There is very little difference between this and the sample of Castor oil previously submitted, report no.L195, from the points of view of acidity and specific gravity. This sample is approximately 10% thicker at room temperature (17°C) than the other, but there is no appreciable difference at 100°C. H1. He | ||