7.1.1 The required thickness measurements, if
not carried out by the recognized organization acting on behalf of
the Administration, should be witnessed by a surveyor of the recognized
organization. The surveyor should be on board to the extent necessary
to control the process.
7.1.2 The thickness measurement company should
be part of the survey planning meeting to be held prior to commencing
7.1.3 In all cases the extent of the thickness
measurements should be sufficient as to represent the actual average
7.1.4 Procedural requirements for thickness measurements
are set out in annex 12.