On 2011-02-20 0632, John M. Steele wrote:
I'm sure the "additional digits" denoted by X in each case will be
chosen to match the current value, but perhaps they should explicitly
say that.
That is an understood part of the process. This statement has been
made, though it's a bit deeper in the more technical papers.
From a consumer point of view, the definition is already beyond that
and the value for X only matters to their fellow metrologists.
It might pay to reference the current CODATA best values and
uncertainies for these constants.
That surely will be given in the final resolution.
Jim
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