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 detailing the distillation analysis of a re-sampled petrol submission.
| Identifier | ExFiles\Box 20\6\ Scan044 | |
| Date | 28th February 1921 | |
| R.R. 238a (100 T) (S.H 159 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 X. 985 Hs.{Lord Ernest Hives - Chair} Hll/EBl.3.21. Laboratory. [Stamp: RECEIVED 1 MAR 1921 HS{Lord Ernest Hives - Chair}] Re sample of Petrol submitted 28.2.21. Specific Gravity .755 Boils slightly at 90 C. " vigorously at 104 C. First distillate over at 95 C. 1.5% distilled over at 100 C. 10% " " " 105 C. 12% " " " 110 C. 23% " " " 115 C. 30% " " " 120 C. 38% " " " 125 C. 45% " " " 130 C. 56% " " " 135 C. 62.5% " " " 140 C. 68% " " " 145 C. 74% " " " 150 C. 77.5% " " " 155 C. 81% " " " 160 C. [Handwritten notes next to table:] 2/2 33% 75% [Handwritten notes right side:] 310°F — 84% 320°F — 85.5% H1. 338°F — 87.5% IHC 347°F — 89.0% 356°F — 91.0% 365°F — 92.0% 374°F — 93.0% [Handwritten note below table:] Includes 15% paraffin. [Handwritten calculations at bottom:] 5 ) 135 ( 27 10 35 34.3 32 275 | ||