Recommendation 2 of the 13th CCL (2007)

The Consultative Committee for Length and the Consultative Committee for Time and Frequency,

considering that:

• the following Terms of Reference have been accepted by the CCTF and recommended by the CIPM at their respective 2006 meetings:
  1. To make recommendations to the CCL for radiations to be used for the realization of the definition of the metre and to make recommendations to the CCTF for radiations to be used as secondary representations of the second;
  2. To maintain together with the BIPM the list of recommended frequency standard values and wavelength values for applications including the practical realization of the definition of the metre and secondary representations of the second;
• the following Terms of Reference have been drafted by the CCL-CCTF Frequency Standards Working Group (CCL-CCTF FS WG) at their 2007 meeting:
  3. To take responsibility for key comparisons of standard frequencies such as CCL-K11;
  4. To respond to future needs of both the CCL and CCTF concerning standard frequencies relevant to the respective communities;
• item 3 of Terms of Reference of the CCL-CCTF FS WG is particularly relevant to the conduction of the CCL-K11 key comparison;

propose that the CIPM recommend that these two new items be added to the existing Terms of Reference of the CCL-CCTF FS WG.

DOI : 10.59161/CCL2007REC2E