This item was agreed at our Poznan meeting. To our October meeting it was included in the proposal for Item 21. In order to make each proposal easier to comprehend it was now separated out. It was subject to the same principle discussion as Item 20. It was agreed to submit this proposal as an informal document to the GRRF 81.

Item 22(Interpolation formula) (R55-02-11; R55-03-23; R55-03-14; R55-04-03; R55-05-04; R55_06_06; R55_07_06; R55_07_13; R55_10_08; R55_10_14; R55_12_05; R55_12_19; R55_13_03)
This proposal was endorsed at the GRRF 81. It was agreed to submit this proposal as working document to the GRRF 82.