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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 percentage distillate of two different petrols at varying temperatures.

Identifier  ExFiles\Box 20\6\  Scan054
Date  11th August 1921
  
R.H. 925A (100 T) (S H.{Arthur M. Hanbury - Head Complaints} 796 10-12-20) C. 2947

X985

Hs.{Lord Ernest Hives - Chair} X985 X4305

H12/EB11.8.21.

Laboratory.

Re 2 Petrols submitted to-day.
(Tank)
(Bottles)

Lighter Spirit (Round bottle).
Heavy Spirit (Medicine bottle).

Temperature.
Percentage Distillate.
100 C. 6.8 -
110 14.0 -
120 21.8 -
130 36.2 -
140 46.4 -
150 60.2 -
160 73.2 18.4
170 82.8 37.6
175 86.6 -
180 - 54.2
190 - 69.4
200 - 77.2
205 - 83.4

These are heavy spirits.

Hl.
He
  
  


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