High precision titrimetry: A System of weight titrimetric analysis using arbitrary standards

A technique of arbitrary standard weight titrimetric analysis has been proposed for realising the ultimate degree of mechanical precision of which titrimetric processes are capable, and has been applied to reactions and methods of end-point location which are particularly favourable. A form of needle-valve weight burette is also described. It has been found that, even in the most favourable cases and working under the conditions of atomic weight determination, there is a limit to the precision and therefore accuracy of the analytical results, which is set by physico-chemical considerations, and which is at least one order less than the maximum attainable mechanical precision of measurement.