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 comparing the distillation properties of two petrols, 'Sumatra Spirit' and 'Pratts No.1'.
| Identifier | ExFiles\Box 76\3\ scan0088 | |
| Date | 11th March 1919 | |
| R.R. 235 E (200 T) (S.F 103, 25-10-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2244. EH c to Wd.{Mr Wood/Mr Whitehead} c to EH. (Handwritten and crossed out) March 11th, 1919. H15/EB11319. Laboratory. Re 2 Petrols, the first Eastern Spirit, the second Pratts No.1. Sumatra Spirit (Handwritten) First. Starts boiling at 34° C. Up to 100° C gives 63% " " 120° C " 85% " " 125° C " 94% All over at 138° C. Pratts No I (Handwritten) Second. Starts boiling at 49° C. Up to 100° C gives 52% " " 120° C " 84% " " 125° C " 89.5% All over at 144° C. The two spirits conform to our other specification tests. HCH (Signature) | ||