– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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CCQM ad hoc Working Group on the Mole

Chair:  Dr B. Güttler, PTB


  1. To draft a "mise‐en‐pratique" for the realization of the mole;

  2. To create awareness with respect to a possible redefinition of the mole, explain reasons and prepare opinions for discussion in the CCQM.

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