Rolls-Royce Archives
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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).
Instructions for a series of tests on insulation material, including mechanical, water absorption, and oil solubility tests.

Identifier  ExFiles\Box 24\2\  Scan050
Date  24th January 1919
  
RR 300 (120B) (SF 349 24-1-19) MP 200552
88226
ROLLS-ROYCE LIMITED.
INSTRUCTIONS.
To
Order No.
Customer's No.
Re. Insulation Testing (cont'd)
allowing each 50% more time
than apparently required to dry
Note this time. Note thickness with micro.
② Observe mechanical properties by bending, chipping etc. Note cracks, explore with HT feeler.
③ Immerse a sample in water 24 hours, remove superficial moisture and test breakdown.
④ Dry at 100°C weighing until steady. Note absorption by weight. Test breakdown.
⑤ Immerse another sample in mineral oil. Observe effect from time to time, particularly solubility.
(cont'd)
Signed
This Sheet must be filed on completion of the work.
  
  


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