Friend, J. Newton (John Newton), 1881-1966 · London, New York : Longmans, Greens · leaf 143
t. This has a very important bearing on the safety or otherwise of using different oils for various purposes. Thus, for example, an oil with too low a flash-point would be dangerous material to burn in an ordinary household lamp. A minimum flash-point has therefore been fixed, below which an oil… … water-bath and warmed. A glass tube Fig. 15. drawn out to a fine point is now con¬ nected with a separate gas supply, and a small jet of flame, about a quarter of an inch high, allowed to burn at its narrow end. This flame is frequently brought close to, but not touch¬ ing, the surface of the…
Paint · Chemistry, Technical
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