Helical silica spring balances are suitable for studying high temperature oxidation because of their cheapness and simplicity of operation. A system has been developed which uses an improved method of spring loading to overcome their main disadvantage, the tendency to break. A detqiled study has been made of the possible sources of error, and methods for reducing or eliminating these have been devised. The accuracy of the balance in practice has been found to be ± 0·3 g.
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References
1.
McBainJ. W., & Bah., A. M., J. Am. chem. Soc., 1926, 48, 690
